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Stephane Lussier
[wine/dcerpc.git] / tools / build.c
blobba1cef624ece9c37b7d82826dacb4a30062dbfc0
1 /*
2 * Copyright 1993 Robert J. Amstadt
3 * Copyright 1995 Martin von Loewis
4 * Copyright 1995, 1996, 1997 Alexandre Julliard
5 * Copyright 1997 Eric Youngdale
6 * Copyright 1999 Ulrich Weigand
7 */
8
9 #include "config.h"
10
11 #include <assert.h>
12 #include <stdarg.h>
13 #include <stdio.h>
14 #include <stdlib.h>
15 #include <string.h>
16 #include <ctype.h>
17 #include <unistd.h>
18
19 #include "winbase.h"
20 #include "winnt.h"
21 #include "module.h"
22 #include "neexe.h"
23 #include "selectors.h"
24 #include "stackframe.h"
25 #include "builtin16.h"
26 #include "thread.h"
27
28 #ifdef NEED_UNDERSCORE_PREFIX
29 # define PREFIX "_"
30 #else
31 # define PREFIX
32 #endif
33
34 #ifdef HAVE_ASM_STRING
35 # define STRING ".string"
36 #else
37 # define STRING ".ascii"
38 #endif
39
40 #if defined(__GNUC__) && !defined(__svr4__)
41 # define USE_STABS
42 #else
43 # undef USE_STABS
44 #endif
45
46 typedef enum
47 {
48 TYPE_BYTE, /* byte variable (Win16) */
49 TYPE_WORD, /* word variable (Win16) */
50 TYPE_LONG, /* long variable (Win16) */
51 TYPE_PASCAL_16, /* pascal function with 16-bit return (Win16) */
52 TYPE_PASCAL, /* pascal function with 32-bit return (Win16) */
53 TYPE_ABS, /* absolute value (Win16) */
54 TYPE_REGISTER, /* register function */
55 TYPE_INTERRUPT, /* interrupt handler function (Win16) */
56 TYPE_STUB, /* unimplemented stub */
57 TYPE_STDCALL, /* stdcall function (Win32) */
58 TYPE_CDECL, /* cdecl function (Win32) */
59 TYPE_VARARGS, /* varargs function (Win32) */
60 TYPE_EXTERN, /* external symbol (Win32) */
61 TYPE_FORWARD, /* forwarded function (Win32) */
62 TYPE_NBTYPES
63 } ORD_TYPE;
64
65 static const char * const TypeNames[TYPE_NBTYPES] =
66 {
67 "byte", /* TYPE_BYTE */
68 "word", /* TYPE_WORD */
69 "long", /* TYPE_LONG */
70 "pascal16", /* TYPE_PASCAL_16 */
71 "pascal", /* TYPE_PASCAL */
72 "equate", /* TYPE_ABS */
73 "register", /* TYPE_REGISTER */
74 "interrupt", /* TYPE_INTERRUPT */
75 "stub", /* TYPE_STUB */
76 "stdcall", /* TYPE_STDCALL */
77 "cdecl", /* TYPE_CDECL */
78 "varargs", /* TYPE_VARARGS */
79 "extern", /* TYPE_EXTERN */
80 "forward" /* TYPE_FORWARD */
81 };
82
83 #define MAX_ORDINALS 2048
84 #define MAX_IMPORTS 16
85
86 /* Callback function used for stub functions */
87 #define STUB_CALLBACK \
88 ((SpecType == SPEC_WIN16) ? "RELAY_Unimplemented16": "RELAY_Unimplemented32")
89
90 typedef enum
91 {
92 SPEC_INVALID,
93 SPEC_WIN16,
94 SPEC_WIN32
95 } SPEC_TYPE;
96
97 typedef enum
98 {
99 SPEC_MODE_DLL,
100 SPEC_MODE_GUIEXE,
101 SPEC_MODE_CUIEXE
102 } SPEC_MODE;
103
104 typedef struct
105 {
106 int n_values;
107 int *values;
108 } ORD_VARIABLE;
109
110 typedef struct
111 {
112 int n_args;
113 char arg_types[32];
114 char link_name[80];
115 } ORD_FUNCTION;
116
117 typedef struct
118 {
119 int value;
120 } ORD_ABS;
121
122 typedef struct
123 {
124 char link_name[80];
125 } ORD_EXTERN;
126
127 typedef struct
128 {
129 char link_name[80];
130 } ORD_FORWARD;
131
132 typedef struct
133 {
134 ORD_TYPE type;
135 int ordinal;
136 int offset;
137 int lineno;
138 char name[80];
139 union
140 {
141 ORD_VARIABLE var;
142 ORD_FUNCTION func;
143 ORD_ABS abs;
144 ORD_EXTERN ext;
145 ORD_FORWARD fwd;
146 } u;
147 } ORDDEF;
148
149 static ORDDEF EntryPoints[MAX_ORDINALS];
150 static ORDDEF *Ordinals[MAX_ORDINALS];
151 static ORDDEF *Names[MAX_ORDINALS];
152
153 static SPEC_TYPE SpecType = SPEC_INVALID;
154 static SPEC_MODE SpecMode = SPEC_MODE_DLL;
155 static char DLLName[80];
156 static char DLLFileName[80];
157 static int Limit = 0;
158 static int Base = MAX_ORDINALS;
159 static int DLLHeapSize = 0;
160 static FILE *SpecFp;
161 static WORD Code_Selector, Data_Selector;
162 static char DLLInitFunc[80];
163 static char *DLLImports[MAX_IMPORTS];
164 static char rsrc_name[80];
165 static int nb_imports;
166 static int nb_entry_points;
167 static int nb_names;
168 static const char *input_file_name;
169 static const char *output_file_name;
170
171 char *ParseBuffer = NULL;
172 char *ParseNext;
173 char ParseSaveChar;
174 int Line;
175
176 static int UsePIC = 0;
177
178 static int debugging = 1;
179
180 /* Offset of a structure field relative to the start of the struct */
181 #define STRUCTOFFSET(type,field) ((int)&((type *)0)->field)
182
183 /* Offset of register relative to the start of the CONTEXT struct */
184 #define CONTEXTOFFSET(reg) STRUCTOFFSET(CONTEXT86,reg)
185
186 /* Offset of register relative to the start of the STACK16FRAME struct */
187 #define STACK16OFFSET(reg) STRUCTOFFSET(STACK16FRAME,reg)
188
189 /* Offset of register relative to the start of the STACK32FRAME struct */
190 #define STACK32OFFSET(reg) STRUCTOFFSET(STACK32FRAME,reg)
191
192 /* Offset of the stack pointer relative to %fs:(0) */
193 #define STACKOFFSET (STRUCTOFFSET(TEB,cur_stack))
194
195 static void BuildCallFrom16Func( FILE *outfile, char *profile, char *prefix, int local );
196
197 static void *xmalloc (size_t size)
198 {
199 void *res;
200
201 res = malloc (size ? size : 1);
202 if (res == NULL)
203 {
204 fprintf (stderr, "Virtual memory exhausted.\n");
205 if (output_file_name) unlink( output_file_name );
206 exit (1);
207 }
208 return res;
209 }
210
211
212 static void *xrealloc (void *ptr, size_t size)
213 {
214 void *res = realloc (ptr, size);
215 if (res == NULL)
216 {
217 fprintf (stderr, "Virtual memory exhausted.\n");
218 if (output_file_name) unlink( output_file_name );
219 exit (1);
220 }
221 return res;
222 }
223
224 static char *xstrdup( const char *str )
225 {
226 char *res = strdup( str );
227 if (!res)
228 {
229 fprintf (stderr, "Virtual memory exhausted.\n");
230 if (output_file_name) unlink( output_file_name );
231 exit (1);
232 }
233 return res;
234 }
235
236 static void fatal_error( const char *msg, ... )
237 {
238 va_list valist;
239 va_start( valist, msg );
240 fprintf( stderr, "%s:%d: ", input_file_name, Line );
241 vfprintf( stderr, msg, valist );
242 va_end( valist );
243 if (output_file_name) unlink( output_file_name );
244 exit(1);
245 }
246
247 static int IsNumberString(char *s)
248 {
249 while (*s != '\0')
250 if (!isdigit(*s++))
251 return 0;
252
253 return 1;
254 }
255
256 static char *strupper(char *s)
257 {
258 char *p;
259
260 for(p = s; *p != '\0'; p++)
261 *p = toupper(*p);
262
263 return s;
264 }
265
266 static char * GetTokenInLine(void)
267 {
268 char *p;
269 char *token;
270
271 if (ParseNext != ParseBuffer)
272 {
273 if (ParseSaveChar == '\0')
274 return NULL;
275 *ParseNext = ParseSaveChar;
276 }
277
278 /*
279 * Remove initial white space.
280 */
281 for (p = ParseNext; isspace(*p); p++)
282 ;
283
284 if ((*p == '\0') || (*p == '#'))
285 return NULL;
286
287 /*
288 * Find end of token.
289 */
290 token = p++;
291 if (*token != '(' && *token != ')')
292 while (*p != '\0' && *p != '(' && *p != ')' && !isspace(*p))
293 p++;
294
295 ParseSaveChar = *p;
296 ParseNext = p;
297 *p = '\0';
298
299 return token;
300 }
301
302 static char * GetToken(void)
303 {
304 char *token;
305
306 if (ParseBuffer == NULL)
307 {
308 ParseBuffer = xmalloc(512);
309 ParseNext = ParseBuffer;
310 while (1)
311 {
312 Line++;
313 if (fgets(ParseBuffer, 511, SpecFp) == NULL)
314 return NULL;
315 if (ParseBuffer[0] != '#')
316 break;
317 }
318 }
319
320 while ((token = GetTokenInLine()) == NULL)
321 {
322 ParseNext = ParseBuffer;
323 while (1)
324 {
325 Line++;
326 if (fgets(ParseBuffer, 511, SpecFp) == NULL)
327 return NULL;
328 if (ParseBuffer[0] != '#')
329 break;
330 }
331 }
332
333 return token;
334 }
335
336
337 static int name_compare( const void *name1, const void *name2 )
338 {
339 ORDDEF *odp1 = *(ORDDEF **)name1;
340 ORDDEF *odp2 = *(ORDDEF **)name2;
341 return strcmp( odp1->name, odp2->name );
342 }
343
344 /*******************************************************************
345 * AssignOrdinals
346 *
347 * Assign ordinals to all entry points.
348 */
349 static void AssignOrdinals(void)
350 {
351 int i, ordinal;
352
353 if ( !nb_names ) return;
354
355 /* sort the list of names */
356 qsort( Names, nb_names, sizeof(Names[0]), name_compare );
357
358 /* check for duplicate names */
359 for (i = 0; i < nb_names - 1; i++)
360 {
361 if (!strcmp( Names[i]->name, Names[i+1]->name ))
362 {
363 Line = MAX( Names[i]->lineno, Names[i+1]->lineno );
364 fatal_error( "'%s' redefined (previous definition at line %d)\n",
365 Names[i]->name, MIN( Names[i]->lineno, Names[i+1]->lineno ) );
366 }
367 }
368
369 /* start assigning from Base, or from 1 if no ordinal defined yet */
370 if (Base == MAX_ORDINALS) Base = 1;
371 for (i = 0, ordinal = Base; i < nb_names; i++)
372 {
373 if (Names[i]->ordinal != -1) continue; /* already has an ordinal */
374 while (Ordinals[ordinal]) ordinal++;
375 if (ordinal >= MAX_ORDINALS)
376 {
377 Line = Names[i]->lineno;
378 fatal_error( "Too many functions defined (max %d)\n", MAX_ORDINALS );
379 }
380 Names[i]->ordinal = ordinal;
381 Ordinals[ordinal] = Names[i];
382 }
383 if (ordinal > Limit) Limit = ordinal;
384 }
385
386
387 /*******************************************************************
388 * ParseVariable
389 *
390 * Parse a variable definition.
391 */
392 static void ParseVariable( ORDDEF *odp )
393 {
394 char *endptr;
395 int *value_array;
396 int n_values;
397 int value_array_size;
398
399 char *token = GetToken();
400 if (*token != '(') fatal_error( "Expected '(' got '%s'\n", token );
401
402 n_values = 0;
403 value_array_size = 25;
404 value_array = xmalloc(sizeof(*value_array) * value_array_size);
405
406 while ((token = GetToken()) != NULL)
407 {
408 if (*token == ')')
409 break;
410
411 value_array[n_values++] = strtol(token, &endptr, 0);
412 if (n_values == value_array_size)
413 {
414 value_array_size += 25;
415 value_array = xrealloc(value_array,
416 sizeof(*value_array) * value_array_size);
417 }
418
419 if (endptr == NULL || *endptr != '\0')
420 fatal_error( "Expected number value, got '%s'\n", token );
421 }
422
423 if (token == NULL)
424 fatal_error( "End of file in variable declaration\n" );
425
426 odp->u.var.n_values = n_values;
427 odp->u.var.values = xrealloc(value_array, sizeof(*value_array) * n_values);
428 }
429
430
431 /*******************************************************************
432 * ParseExportFunction
433 *
434 * Parse a function definition.
435 */
436 static void ParseExportFunction( ORDDEF *odp )
437 {
438 char *token;
439 int i;
440
441 switch(SpecType)
442 {
443 case SPEC_WIN16:
444 if (odp->type == TYPE_STDCALL)
445 fatal_error( "'stdcall' not supported for Win16\n" );
446 if (odp->type == TYPE_VARARGS)
447 fatal_error( "'varargs' not supported for Win16\n" );
448 break;
449 case SPEC_WIN32:
450 if ((odp->type == TYPE_PASCAL) || (odp->type == TYPE_PASCAL_16))
451 fatal_error( "'pascal' not supported for Win32\n" );
452 break;
453 default:
454 break;
455 }
456
457 token = GetToken();
458 if (*token != '(') fatal_error( "Expected '(' got '%s'\n", token );
459
460 for (i = 0; i < sizeof(odp->u.func.arg_types)-1; i++)
461 {
462 token = GetToken();
463 if (*token == ')')
464 break;
465
466 if (!strcmp(token, "word"))
467 odp->u.func.arg_types[i] = 'w';
468 else if (!strcmp(token, "s_word"))
469 odp->u.func.arg_types[i] = 's';
470 else if (!strcmp(token, "long") || !strcmp(token, "segptr"))
471 odp->u.func.arg_types[i] = 'l';
472 else if (!strcmp(token, "ptr"))
473 odp->u.func.arg_types[i] = 'p';
474 else if (!strcmp(token, "str"))
475 odp->u.func.arg_types[i] = 't';
476 else if (!strcmp(token, "wstr"))
477 odp->u.func.arg_types[i] = 'W';
478 else if (!strcmp(token, "segstr"))
479 odp->u.func.arg_types[i] = 'T';
480 else if (!strcmp(token, "double"))
481 {
482 odp->u.func.arg_types[i++] = 'l';
483 odp->u.func.arg_types[i] = 'l';
484 }
485 else fatal_error( "Unknown variable type '%s'\n", token );
486
487 if (SpecType == SPEC_WIN32)
488 {
489 if (strcmp(token, "long") &&
490 strcmp(token, "ptr") &&
491 strcmp(token, "str") &&
492 strcmp(token, "wstr") &&
493 strcmp(token, "double"))
494 {
495 fatal_error( "Type '%s' not supported for Win32\n", token );
496 }
497 }
498 }
499 if ((*token != ')') || (i >= sizeof(odp->u.func.arg_types)))
500 fatal_error( "Too many arguments\n" );
501
502 odp->u.func.arg_types[i] = '\0';
503 if ((odp->type == TYPE_STDCALL) && !i)
504 odp->type = TYPE_CDECL; /* stdcall is the same as cdecl for 0 args */
505 strcpy(odp->u.func.link_name, GetToken());
506 }
507
508
509 /*******************************************************************
510 * ParseEquate
511 *
512 * Parse an 'equate' definition.
513 */
514 static void ParseEquate( ORDDEF *odp )
515 {
516 char *endptr;
517
518 char *token = GetToken();
519 int value = strtol(token, &endptr, 0);
520 if (endptr == NULL || *endptr != '\0')
521 fatal_error( "Expected number value, got '%s'\n", token );
522 if (SpecType == SPEC_WIN32)
523 fatal_error( "'equate' not supported for Win32\n" );
524 odp->u.abs.value = value;
525 }
526
527
528 /*******************************************************************
529 * ParseStub
530 *
531 * Parse a 'stub' definition.
532 */
533 static void ParseStub( ORDDEF *odp )
534 {
535 odp->u.func.arg_types[0] = '\0';
536 strcpy( odp->u.func.link_name, STUB_CALLBACK );
537 }
538
539
540 /*******************************************************************
541 * ParseInterrupt
542 *
543 * Parse an 'interrupt' definition.
544 */
545 static void ParseInterrupt( ORDDEF *odp )
546 {
547 char *token;
548
549 if (SpecType == SPEC_WIN32)
550 fatal_error( "'interrupt' not supported for Win32\n" );
551
552 token = GetToken();
553 if (*token != '(') fatal_error( "Expected '(' got '%s'\n", token );
554
555 token = GetToken();
556 if (*token != ')') fatal_error( "Expected ')' got '%s'\n", token );
557
558 odp->u.func.arg_types[0] = '\0';
559 strcpy( odp->u.func.link_name, GetToken() );
560 }
561
562
563 /*******************************************************************
564 * ParseExtern
565 *
566 * Parse an 'extern' definition.
567 */
568 static void ParseExtern( ORDDEF *odp )
569 {
570 if (SpecType == SPEC_WIN16) fatal_error( "'extern' not supported for Win16\n" );
571 strcpy( odp->u.ext.link_name, GetToken() );
572 }
573
574
575 /*******************************************************************
576 * ParseForward
577 *
578 * Parse a 'forward' definition.
579 */
580 static void ParseForward( ORDDEF *odp )
581 {
582 if (SpecType == SPEC_WIN16) fatal_error( "'forward' not supported for Win16\n" );
583 strcpy( odp->u.fwd.link_name, GetToken() );
584 }
585
586
587 /*******************************************************************
588 * ParseOrdinal
589 *
590 * Parse an ordinal definition.
591 */
592 static void ParseOrdinal(int ordinal)
593 {
594 char *token;
595
596 ORDDEF *odp = &EntryPoints[nb_entry_points++];
597
598 if (!(token = GetToken())) fatal_error( "Expected type after ordinal\n" );
599
600 for (odp->type = 0; odp->type < TYPE_NBTYPES; odp->type++)
601 if (TypeNames[odp->type] && !strcmp( token, TypeNames[odp->type] ))
602 break;
603
604 if (odp->type >= TYPE_NBTYPES)
605 fatal_error( "Expected type after ordinal, found '%s' instead\n", token );
606
607 if (!(token = GetToken())) fatal_error( "Expected name after type\n" );
608
609 strcpy( odp->name, token );
610 odp->lineno = Line;
611 odp->ordinal = ordinal;
612
613 switch(odp->type)
614 {
615 case TYPE_BYTE:
616 case TYPE_WORD:
617 case TYPE_LONG:
618 ParseVariable( odp );
619 break;
620 case TYPE_REGISTER:
621 ParseExportFunction( odp );
622 #ifndef __i386__
623 /* ignore Win32 'register' routines on non-Intel archs */
624 if (SpecType == SPEC_WIN32)
625 {
626 nb_entry_points--;
627 return;
628 }
629 #endif
630 break;
631 case TYPE_PASCAL_16:
632 case TYPE_PASCAL:
633 case TYPE_STDCALL:
634 case TYPE_VARARGS:
635 case TYPE_CDECL:
636 ParseExportFunction( odp );
637 break;
638 case TYPE_INTERRUPT:
639 ParseInterrupt( odp );
640 break;
641 case TYPE_ABS:
642 ParseEquate( odp );
643 break;
644 case TYPE_STUB:
645 ParseStub( odp );
646 break;
647 case TYPE_EXTERN:
648 ParseExtern( odp );
649 break;
650 case TYPE_FORWARD:
651 ParseForward( odp );
652 break;
653 default:
654 assert( 0 );
655 }
656
657 if (ordinal != -1)
658 {
659 if (ordinal >= MAX_ORDINALS) fatal_error( "Ordinal number %d too large\n", ordinal );
660 if (ordinal > Limit) Limit = ordinal;
661 if (ordinal < Base) Base = ordinal;
662 odp->ordinal = ordinal;
663 Ordinals[ordinal] = odp;
664 }
665
666 if (!strcmp( odp->name, "@" ))
667 {
668 if (ordinal == -1)
669 fatal_error( "Nameless function needs an explicit ordinal number\n" );
670 if (SpecType != SPEC_WIN32)
671 fatal_error( "Nameless functions not supported for Win16\n" );
672 odp->name[0] = 0;
673 }
674 else Names[nb_names++] = odp;
675 }
676
677
678 /*******************************************************************
679 * ParseTopLevel
680 *
681 * Parse a spec file.
682 */
683 static void ParseTopLevel(void)
684 {
685 char *token;
686
687 while ((token = GetToken()) != NULL)
688 {
689 if (strcmp(token, "name") == 0)
690 {
691 strcpy(DLLName, GetToken());
692 strupper(DLLName);
693 }
694 else if (strcmp(token, "file") == 0)
695 {
696 strcpy(DLLFileName, GetToken());
697 strupper(DLLFileName);
698 }
699 else if (strcmp(token, "type") == 0)
700 {
701 token = GetToken();
702 if (!strcmp(token, "win16" )) SpecType = SPEC_WIN16;
703 else if (!strcmp(token, "win32" )) SpecType = SPEC_WIN32;
704 else fatal_error( "Type must be 'win16' or 'win32'\n" );
705 }
706 else if (strcmp(token, "mode") == 0)
707 {
708 token = GetToken();
709 if (!strcmp(token, "dll" )) SpecMode = SPEC_MODE_DLL;
710 else if (!strcmp(token, "guiexe" )) SpecMode = SPEC_MODE_GUIEXE;
711 else if (!strcmp(token, "cuiexe" )) SpecMode = SPEC_MODE_CUIEXE;
712 else fatal_error( "Mode must be 'dll', 'guiexe' or 'cuiexe'\n" );
713 }
714 else if (strcmp(token, "heap") == 0)
715 {
716 token = GetToken();
717 if (!IsNumberString(token)) fatal_error( "Expected number after heap\n" );
718 DLLHeapSize = atoi(token);
719 }
720 else if (strcmp(token, "init") == 0)
721 {
722 strcpy(DLLInitFunc, GetToken());
723 if (SpecType == SPEC_WIN16)
724 fatal_error( "init cannot be used for Win16 spec files\n" );
725 if (!DLLInitFunc[0])
726 fatal_error( "Expected function name after init\n" );
727 }
728 else if (strcmp(token, "import") == 0)
729 {
730 if (nb_imports >= MAX_IMPORTS)
731 fatal_error( "Too many imports (limit %d)\n", MAX_IMPORTS );
732 if (SpecType != SPEC_WIN32)
733 fatal_error( "Imports not supported for Win16\n" );
734 DLLImports[nb_imports++] = xstrdup(GetToken());
735 }
736 else if (strcmp(token, "rsrc") == 0)
737 {
738 strcpy( rsrc_name, GetToken() );
739 strcat( rsrc_name, "_ResourceDescriptor" );
740 }
741 else if (strcmp(token, "@") == 0)
742 {
743 if (SpecType != SPEC_WIN32)
744 fatal_error( "'@' ordinals not supported for Win16\n" );
745 ParseOrdinal( -1 );
746 }
747 else if (IsNumberString(token))
748 {
749 ParseOrdinal( atoi(token) );
750 }
751 else
752 fatal_error( "Expected name, id, length or ordinal\n" );
753 }
754
755 if (!DLLFileName[0])
756 if (SpecMode == SPEC_MODE_DLL)
757 sprintf( DLLFileName, "%s.DLL", DLLName );
758 else
759 sprintf( DLLFileName, "%s.EXE", DLLName );
760 }
761
762
763 /*******************************************************************
764 * StoreVariableCode
765 *
766 * Store a list of ints into a byte array.
767 */
768 static int StoreVariableCode( unsigned char *buffer, int size, ORDDEF *odp )
769 {
770 int i;
771
772 switch(size)
773 {
774 case 1:
775 for (i = 0; i < odp->u.var.n_values; i++)
776 buffer[i] = odp->u.var.values[i];
777 break;
778 case 2:
779 for (i = 0; i < odp->u.var.n_values; i++)
780 ((unsigned short *)buffer)[i] = odp->u.var.values[i];
781 break;
782 case 4:
783 for (i = 0; i < odp->u.var.n_values; i++)
784 ((unsigned int *)buffer)[i] = odp->u.var.values[i];
785 break;
786 }
787 return odp->u.var.n_values * size;
788 }
789
790
791 /*******************************************************************
792 * DumpBytes
793 *
794 * Dump a byte stream into the assembly code.
795 */
796 static void DumpBytes( FILE *outfile, const unsigned char *data, int len,
797 const char *label )
798 {
799 int i;
800
801 fprintf( outfile, "\nstatic BYTE %s[] = \n{", label );
802
803 for (i = 0; i < len; i++)
804 {
805 if (!(i & 0x0f)) fprintf( outfile, "\n " );
806 fprintf( outfile, "%d", *data++ );
807 if (i < len - 1) fprintf( outfile, ", " );
808 }
809 fprintf( outfile, "\n};\n" );
810 }
811
812
813 /*******************************************************************
814 * BuildModule16
815 *
816 * Build the in-memory representation of a 16-bit NE module, and dump it
817 * as a byte stream into the assembly code.
818 */
819 static int BuildModule16( FILE *outfile, int max_code_offset,
820 int max_data_offset )
821 {
822 int i;
823 char *buffer;
824 NE_MODULE *pModule;
825 SEGTABLEENTRY *pSegment;
826 OFSTRUCT *pFileInfo;
827 BYTE *pstr;
828 WORD *pword;
829 ET_BUNDLE *bundle = 0;
830 ET_ENTRY *entry = 0;
831
832 /* Module layout:
833 * NE_MODULE Module
834 * OFSTRUCT File information
835 * SEGTABLEENTRY Segment 1 (code)
836 * SEGTABLEENTRY Segment 2 (data)
837 * WORD[2] Resource table (empty)
838 * BYTE[2] Imported names (empty)
839 * BYTE[n] Resident names table
840 * BYTE[n] Entry table
841 */
842
843 buffer = xmalloc( 0x10000 );
844
845 pModule = (NE_MODULE *)buffer;
846 memset( pModule, 0, sizeof(*pModule) );
847 pModule->magic = IMAGE_OS2_SIGNATURE;
848 pModule->count = 1;
849 pModule->next = 0;
850 pModule->flags = NE_FFLAGS_SINGLEDATA | NE_FFLAGS_BUILTIN | NE_FFLAGS_LIBMODULE;
851 pModule->dgroup = 2;
852 pModule->heap_size = DLLHeapSize;
853 pModule->stack_size = 0;
854 pModule->ip = 0;
855 pModule->cs = 0;
856 pModule->sp = 0;
857 pModule->ss = 0;
858 pModule->seg_count = 2;
859 pModule->modref_count = 0;
860 pModule->nrname_size = 0;
861 pModule->modref_table = 0;
862 pModule->nrname_fpos = 0;
863 pModule->moveable_entries = 0;
864 pModule->alignment = 0;
865 pModule->truetype = 0;
866 pModule->os_flags = NE_OSFLAGS_WINDOWS;
867 pModule->misc_flags = 0;
868 pModule->dlls_to_init = 0;
869 pModule->nrname_handle = 0;
870 pModule->min_swap_area = 0;
871 pModule->expected_version = 0;
872 pModule->module32 = 0;
873 pModule->self = 0;
874 pModule->self_loading_sel = 0;
875
876 /* File information */
877
878 pFileInfo = (OFSTRUCT *)(pModule + 1);
879 pModule->fileinfo = (int)pFileInfo - (int)pModule;
880 memset( pFileInfo, 0, sizeof(*pFileInfo) - sizeof(pFileInfo->szPathName) );
881 pFileInfo->cBytes = sizeof(*pFileInfo) - sizeof(pFileInfo->szPathName)
882 + strlen(DLLFileName);
883 strcpy( pFileInfo->szPathName, DLLFileName );
884 pstr = (char *)pFileInfo + pFileInfo->cBytes + 1;
885
886 #ifdef __i386__ /* FIXME: Alignment problems! */
887
888 /* Segment table */
889
890 pSegment = (SEGTABLEENTRY *)pstr;
891 pModule->seg_table = (int)pSegment - (int)pModule;
892 pSegment->filepos = 0;
893 pSegment->size = max_code_offset;
894 pSegment->flags = 0;
895 pSegment->minsize = max_code_offset;
896 pSegment->hSeg = 0;
897 pSegment++;
898
899 pModule->dgroup_entry = (int)pSegment - (int)pModule;
900 pSegment->filepos = 0;
901 pSegment->size = max_data_offset;
902 pSegment->flags = NE_SEGFLAGS_DATA;
903 pSegment->minsize = max_data_offset;
904 pSegment->hSeg = 0;
905 pSegment++;
906
907 /* Resource table */
908
909 pword = (WORD *)pSegment;
910 pModule->res_table = (int)pword - (int)pModule;
911 *pword++ = 0;
912 *pword++ = 0;
913
914 /* Imported names table */
915
916 pstr = (char *)pword;
917 pModule->import_table = (int)pstr - (int)pModule;
918 *pstr++ = 0;
919 *pstr++ = 0;
920
921 /* Resident names table */
922
923 pModule->name_table = (int)pstr - (int)pModule;
924 /* First entry is module name */
925 *pstr = strlen(DLLName );
926 strcpy( pstr + 1, DLLName );
927 pstr += *pstr + 1;
928 *(WORD *)pstr = 0;
929 pstr += sizeof(WORD);
930 /* Store all ordinals */
931 for (i = 1; i <= Limit; i++)
932 {
933 ORDDEF *odp = Ordinals[i];
934 if (!odp || !odp->name[0]) continue;
935 *pstr = strlen( odp->name );
936 strcpy( pstr + 1, odp->name );
937 strupper( pstr + 1 );
938 pstr += *pstr + 1;
939 *(WORD *)pstr = i;
940 pstr += sizeof(WORD);
941 }
942 *pstr++ = 0;
943
944 /* Entry table */
945
946 pModule->entry_table = (int)pstr - (int)pModule;
947 for (i = 1; i <= Limit; i++)
948 {
949 int selector = 0;
950 ORDDEF *odp = Ordinals[i];
951 if (!odp) continue;
952
953 switch (odp->type)
954 {
955 case TYPE_CDECL:
956 case TYPE_PASCAL:
957 case TYPE_PASCAL_16:
958 case TYPE_REGISTER:
959 case TYPE_INTERRUPT:
960 case TYPE_STUB:
961 selector = 1; /* Code selector */
962 break;
963
964 case TYPE_BYTE:
965 case TYPE_WORD:
966 case TYPE_LONG:
967 selector = 2; /* Data selector */
968 break;
969
970 case TYPE_ABS:
971 selector = 0xfe; /* Constant selector */
972 break;
973
974 default:
975 selector = 0; /* Invalid selector */
976 break;
977 }
978
979 if ( !selector )
980 continue;
981
982 if ( bundle && bundle->last+1 == i )
983 bundle->last++;
984 else
985 {
986 if ( bundle )
987 bundle->next = (char *)pstr - (char *)pModule;
988
989 bundle = (ET_BUNDLE *)pstr;
990 bundle->first = i-1;
991 bundle->last = i;
992 bundle->next = 0;
993 pstr += sizeof(ET_BUNDLE);
994 }
995
996 /* FIXME: is this really correct ?? */
997 entry = (ET_ENTRY *)pstr;
998 entry->type = 0xff; /* movable */
999 entry->flags = 3; /* exported & public data */
1000 entry->segnum = selector;
1001 entry->offs = odp->offset;
1002 pstr += sizeof(ET_ENTRY);
1003 }
1004 *pstr++ = 0;
1005 #endif
1006
1007 /* Dump the module content */
1008
1009 DumpBytes( outfile, (char *)pModule, (int)pstr - (int)pModule,
1010 "Module" );
1011 return (int)pstr - (int)pModule;
1012 }
1013
1014
1015 /*******************************************************************
1016 * BuildSpec32File
1017 *
1018 * Build a Win32 C file from a spec file.
1019 */
1020 static int BuildSpec32File( FILE *outfile )
1021 {
1022 ORDDEF *odp;
1023 int i, fwd_size = 0, have_regs = FALSE;
1024 int nr_exports;
1025
1026 AssignOrdinals();
1027 nr_exports = Base <= Limit ? Limit - Base + 1 : 0;
1028
1029 fprintf( outfile, "/* File generated automatically from %s; do not edit! */\n\n",
1030 input_file_name );
1031 fprintf( outfile, "#include \"builtin32.h\"\n\n" );
1032 fprintf( outfile, "extern const BUILTIN32_DESCRIPTOR %s_Descriptor;\n",
1033 DLLName );
1034
1035 /* Output the DLL functions prototypes */
1036
1037 for (i = 0, odp = EntryPoints; i < nb_entry_points; i++, odp++)
1038 {
1039 switch(odp->type)
1040 {
1041 case TYPE_EXTERN:
1042 fprintf( outfile, "extern void %s();\n", odp->u.ext.link_name );
1043 break;
1044 case TYPE_STDCALL:
1045 case TYPE_VARARGS:
1046 case TYPE_CDECL:
1047 fprintf( outfile, "extern void %s();\n", odp->u.func.link_name );
1048 break;
1049 case TYPE_FORWARD:
1050 fwd_size += strlen(odp->u.fwd.link_name) + 1;
1051 break;
1052 case TYPE_REGISTER:
1053 fprintf( outfile, "extern void __regs_%d();\n", odp->ordinal );
1054 have_regs = TRUE;
1055 break;
1056 case TYPE_STUB:
1057 fprintf( outfile, "static void __stub_%d() { BUILTIN32_Unimplemented(&%s_Descriptor,%d); }\n",
1058 odp->ordinal, DLLName, odp->ordinal );
1059 break;
1060 default:
1061 fprintf(stderr,"build: function type %d not available for Win32\n",
1062 odp->type);
1063 return -1;
1064 }
1065 }
1066
1067 /* Output LibMain function */
1068 if (DLLInitFunc[0]) fprintf( outfile, "extern void %s();\n", DLLInitFunc );
1069
1070
1071 /* Output code for all register functions */
1072
1073 if ( have_regs )
1074 {
1075 fprintf( outfile, "#ifndef __GNUC__\n" );
1076 fprintf( outfile, "static void __asm__dummy() {\n" );
1077 fprintf( outfile, "#endif /* !defined(__GNUC__) */\n" );
1078 for (i = 0, odp = EntryPoints; i < nb_entry_points; i++, odp++)
1079 {
1080 if (odp->type != TYPE_REGISTER) continue;
1081 fprintf( outfile,
1082 "__asm__(\".align 4\\n\\t\"\n"
1083 " \".type " PREFIX "__regs_%d,@function\\n\\t\"\n"
1084 " \"" PREFIX "__regs_%d:\\n\\t\"\n"
1085 " \"call " PREFIX "CALL32_Regs\\n\\t\"\n"
1086 " \".long " PREFIX "%s\\n\\t\"\n"
1087 " \".byte %d,%d\");\n",
1088 odp->ordinal, odp->ordinal, odp->u.func.link_name,
1089 4 * strlen(odp->u.func.arg_types),
1090 4 * strlen(odp->u.func.arg_types) );
1091 }
1092 fprintf( outfile, "#ifndef __GNUC__\n" );
1093 fprintf( outfile, "}\n" );
1094 fprintf( outfile, "#endif /* !defined(__GNUC__) */\n" );
1095 }
1096
1097 /* Output the DLL functions table */
1098
1099 fprintf( outfile, "\nstatic const ENTRYPOINT32 Functions[%d] =\n{\n",
1100 nr_exports );
1101 for (i = Base; i <= Limit; i++)
1102 {
1103 ORDDEF *odp = Ordinals[i];
1104 if (!odp) fprintf( outfile, " 0" );
1105 else switch(odp->type)
1106 {
1107 case TYPE_EXTERN:
1108 fprintf( outfile, " %s", odp->u.ext.link_name );
1109 break;
1110 case TYPE_STDCALL:
1111 case TYPE_VARARGS:
1112 case TYPE_CDECL:
1113 fprintf( outfile, " %s", odp->u.func.link_name);
1114 break;
1115 case TYPE_STUB:
1116 fprintf( outfile, " __stub_%d", i );
1117 break;
1118 case TYPE_REGISTER:
1119 fprintf( outfile, " __regs_%d", i );
1120 break;
1121 case TYPE_FORWARD:
1122 fprintf( outfile, " (ENTRYPOINT32)\"%s\"", odp->u.fwd.link_name );
1123 break;
1124 default:
1125 return -1;
1126 }
1127 if (i < Limit) fprintf( outfile, ",\n" );
1128 }
1129 fprintf( outfile, "\n};\n\n" );
1130
1131 /* Output the DLL names table */
1132
1133 fprintf( outfile, "static const char * const FuncNames[%d] =\n{\n", nb_names );
1134 for (i = 0; i < nb_names; i++)
1135 {
1136 if (i) fprintf( outfile, ",\n" );
1137 fprintf( outfile, " \"%s\"", Names[i]->name );
1138 }
1139 fprintf( outfile, "\n};\n\n" );
1140
1141 /* Output the DLL ordinals table */
1142
1143 fprintf( outfile, "static const unsigned short FuncOrdinals[%d] =\n{\n", nb_names );
1144 for (i = 0; i < nb_names; i++)
1145 {
1146 if (i) fprintf( outfile, ",\n" );
1147 fprintf( outfile, " %d", Names[i]->ordinal - Base );
1148 }
1149 fprintf( outfile, "\n};\n\n" );
1150
1151 /* Output the DLL argument types */
1152
1153 fprintf( outfile, "static const unsigned int ArgTypes[%d] =\n{\n",
1154 nr_exports );
1155 for (i = Base; i <= Limit; i++)
1156 {
1157 ORDDEF *odp = Ordinals[i];
1158 unsigned int j, mask = 0;
1159 if (odp &&
1160 ((odp->type == TYPE_STDCALL) || (odp->type == TYPE_CDECL) ||
1161 (odp->type == TYPE_REGISTER)))
1162 for (j = 0; odp->u.func.arg_types[j]; j++)
1163 {
1164 if (odp->u.func.arg_types[j] == 't') mask |= 1<< (j*2);
1165 if (odp->u.func.arg_types[j] == 'W') mask |= 2<< (j*2);
1166 }
1167 fprintf( outfile, " %d", mask );
1168 if (i < Limit) fprintf( outfile, ",\n" );
1169 }
1170 fprintf( outfile, "\n};\n\n" );
1171
1172 /* Output the DLL functions arguments */
1173
1174 fprintf( outfile, "static const unsigned char FuncArgs[%d] =\n{\n",
1175 nr_exports );
1176 for (i = Base; i <= Limit; i++)
1177 {
1178 unsigned char args = 0xff;
1179 ORDDEF *odp = Ordinals[i];
1180 if (odp) switch(odp->type)
1181 {
1182 case TYPE_STDCALL:
1183 args = (unsigned char)strlen(odp->u.func.arg_types);
1184 break;
1185 case TYPE_CDECL:
1186 args = 0x80 | (unsigned char)strlen(odp->u.func.arg_types);
1187 break;
1188 case TYPE_REGISTER:
1189 args = 0x40 | (unsigned char)strlen(odp->u.func.arg_types);
1190 break;
1191 case TYPE_FORWARD:
1192 args = 0xfd;
1193 break;
1194 default:
1195 args = 0xff;
1196 break;
1197 }
1198 fprintf( outfile, " 0x%02x", args );
1199 if (i < Limit) fprintf( outfile, ",\n" );
1200 }
1201 fprintf( outfile, "\n};\n\n" );
1202
1203 /* Output the DLL imports */
1204
1205 if (nb_imports)
1206 {
1207 fprintf( outfile, "static const char * const Imports[%d] =\n{\n", nb_imports );
1208 for (i = 0; i < nb_imports; i++)
1209 {
1210 fprintf( outfile, " \"%s\"", DLLImports[i] );
1211 if (i < nb_imports-1) fprintf( outfile, ",\n" );
1212 }
1213 fprintf( outfile, "\n};\n\n" );
1214 }
1215
1216 /* Output the DLL descriptor */
1217
1218 if (rsrc_name[0]) fprintf( outfile, "extern const char %s[];\n\n", rsrc_name );
1219
1220 fprintf( outfile, "const BUILTIN32_DESCRIPTOR %s_Descriptor =\n{\n",
1221 DLLName );
1222 fprintf( outfile, " \"%s\",\n", DLLName );
1223 fprintf( outfile, " \"%s\",\n", DLLFileName );
1224 fprintf( outfile, " %d,\n", nr_exports? Base : 0 );
1225 fprintf( outfile, " %d,\n", nr_exports );
1226 fprintf( outfile, " %d,\n", nb_names );
1227 fprintf( outfile, " %d,\n", nb_imports );
1228 fprintf( outfile, " %d,\n", (fwd_size + 3) & ~3 );
1229 fprintf( outfile,
1230 " Functions,\n"
1231 " FuncNames,\n"
1232 " FuncOrdinals,\n"
1233 " FuncArgs,\n"
1234 " ArgTypes,\n");
1235 fprintf( outfile, " %s,\n", nb_imports ? "Imports" : "0" );
1236 fprintf( outfile, " %s,\n", DLLInitFunc[0] ? DLLInitFunc : "0" );
1237 fprintf( outfile, " %d,\n", SpecMode == SPEC_MODE_DLL ? IMAGE_FILE_DLL : 0 );
1238 fprintf( outfile, " %s\n", rsrc_name[0] ? rsrc_name : "0" );
1239 fprintf( outfile, "};\n" );
1240
1241 /* Output the DLL constructor */
1242
1243 fprintf( outfile, "static void dll_init(void) __attribute__((constructor));\n" );
1244 fprintf( outfile, "static void dll_init(void) { BUILTIN32_RegisterDLL( &%s_Descriptor ); }\n",
1245 DLLName );
1246 return 0;
1247 }
1248
1249 /*******************************************************************
1250 * Spec16TypeCompare
1251 */
1252 static int Spec16TypeCompare( const void *e1, const void *e2 )
1253 {
1254 const ORDDEF *odp1 = *(const ORDDEF **)e1;
1255 const ORDDEF *odp2 = *(const ORDDEF **)e2;
1256
1257 int type1 = (odp1->type == TYPE_CDECL) ? 0
1258 : (odp1->type == TYPE_REGISTER) ? 3
1259 : (odp1->type == TYPE_INTERRUPT) ? 4
1260 : (odp1->type == TYPE_PASCAL_16) ? 1 : 2;
1261
1262 int type2 = (odp2->type == TYPE_CDECL) ? 0
1263 : (odp2->type == TYPE_REGISTER) ? 3
1264 : (odp2->type == TYPE_INTERRUPT) ? 4
1265 : (odp2->type == TYPE_PASCAL_16) ? 1 : 2;
1266
1267 int retval = type1 - type2;
1268 if ( !retval )
1269 retval = strcmp( odp1->u.func.arg_types, odp2->u.func.arg_types );
1270
1271 return retval;
1272 }
1273
1274 /*******************************************************************
1275 * BuildSpec16File
1276 *
1277 * Build a Win16 assembly file from a spec file.
1278 */
1279 static int BuildSpec16File( FILE *outfile )
1280 {
1281 ORDDEF **type, **typelist;
1282 int i, nFuncs, nTypes;
1283 int code_offset, data_offset, module_size;
1284 unsigned char *data;
1285
1286 /* File header */
1287
1288 fprintf( outfile, "/* File generated automatically from %s; do not edit! */\n\n",
1289 input_file_name );
1290 fprintf( outfile, "#define __FLATCS__ 0x%04x\n", Code_Selector );
1291 fprintf( outfile, "#include \"builtin16.h\"\n\n" );
1292
1293 data = (unsigned char *)xmalloc( 0x10000 );
1294 memset( data, 0, 16 );
1295 data_offset = 16;
1296
1297
1298 /* Build sorted list of all argument types, without duplicates */
1299
1300 typelist = (ORDDEF **)calloc( Limit+1, sizeof(ORDDEF *) );
1301
1302 for (i = nFuncs = 0; i <= Limit; i++)
1303 {
1304 ORDDEF *odp = Ordinals[i];
1305 if (!odp) continue;
1306 switch (odp->type)
1307 {
1308 case TYPE_REGISTER:
1309 case TYPE_INTERRUPT:
1310 case TYPE_CDECL:
1311 case TYPE_PASCAL:
1312 case TYPE_PASCAL_16:
1313 case TYPE_STUB:
1314 typelist[nFuncs++] = odp;
1315
1316 default:
1317 break;
1318 }
1319 }
1320
1321 qsort( typelist, nFuncs, sizeof(ORDDEF *), Spec16TypeCompare );
1322
1323 i = nTypes = 0;
1324 while ( i < nFuncs )
1325 {
1326 typelist[nTypes++] = typelist[i++];
1327 while ( i < nFuncs && Spec16TypeCompare( typelist + i, typelist + nTypes-1 ) == 0 )
1328 i++;
1329 }
1330
1331 /* Output CallFrom16 routines needed by this .spec file */
1332
1333 for ( i = 0; i < nTypes; i++ )
1334 {
1335 char profile[101];
1336
1337 sprintf( profile, "%s_%s_%s",
1338 (typelist[i]->type == TYPE_CDECL) ? "c" : "p",
1339 (typelist[i]->type == TYPE_REGISTER) ? "regs" :
1340 (typelist[i]->type == TYPE_INTERRUPT) ? "intr" :
1341 (typelist[i]->type == TYPE_PASCAL_16) ? "word" : "long",
1342 typelist[i]->u.func.arg_types );
1343
1344 BuildCallFrom16Func( outfile, profile, DLLName, TRUE );
1345 }
1346
1347 /* Output the DLL functions prototypes */
1348
1349 for (i = 0; i <= Limit; i++)
1350 {
1351 ORDDEF *odp = Ordinals[i];
1352 if (!odp) continue;
1353 switch(odp->type)
1354 {
1355 case TYPE_REGISTER:
1356 case TYPE_INTERRUPT:
1357 case TYPE_CDECL:
1358 case TYPE_PASCAL:
1359 case TYPE_PASCAL_16:
1360 fprintf( outfile, "extern void %s();\n", odp->u.func.link_name );
1361 break;
1362 default:
1363 break;
1364 }
1365 }
1366
1367 /* Output code segment */
1368
1369 fprintf( outfile, "\nstatic struct\n{\n CALLFROM16 call[%d];\n"
1370 " ENTRYPOINT16 entry[%d];\n} Code_Segment = \n{\n {\n",
1371 nTypes, nFuncs );
1372 code_offset = 0;
1373
1374 for ( i = 0; i < nTypes; i++ )
1375 {
1376 char profile[101], *arg;
1377 int argsize = 0;
1378
1379 sprintf( profile, "%s_%s_%s",
1380 (typelist[i]->type == TYPE_CDECL) ? "c" : "p",
1381 (typelist[i]->type == TYPE_REGISTER) ? "regs" :
1382 (typelist[i]->type == TYPE_INTERRUPT) ? "intr" :
1383 (typelist[i]->type == TYPE_PASCAL_16) ? "word" : "long",
1384 typelist[i]->u.func.arg_types );
1385
1386 if ( typelist[i]->type != TYPE_CDECL )
1387 for ( arg = typelist[i]->u.func.arg_types; *arg; arg++ )
1388 switch ( *arg )
1389 {
1390 case 'w': /* word */
1391 case 's': /* s_word */
1392 argsize += 2;
1393 break;
1394
1395 case 'l': /* long or segmented pointer */
1396 case 'T': /* segmented pointer to null-terminated string */
1397 case 'p': /* linear pointer */
1398 case 't': /* linear pointer to null-terminated string */
1399 argsize += 4;
1400 break;
1401 }
1402
1403 if ( typelist[i]->type == TYPE_INTERRUPT )
1404 argsize += 2;
1405
1406 fprintf( outfile, " CF16_%s( %s_CallFrom16_%s, %d, \"%s\" ),\n",
1407 ( typelist[i]->type == TYPE_REGISTER
1408 || typelist[i]->type == TYPE_INTERRUPT)? "REGS":
1409 typelist[i]->type == TYPE_PASCAL_16? "WORD" : "LONG",
1410 DLLName, profile, argsize, profile );
1411
1412 code_offset += sizeof(CALLFROM16);
1413 }
1414 fprintf( outfile, " },\n {\n" );
1415
1416 for (i = 0; i <= Limit; i++)
1417 {
1418 ORDDEF *odp = Ordinals[i];
1419 if (!odp) continue;
1420 switch (odp->type)
1421 {
1422 case TYPE_ABS:
1423 odp->offset = LOWORD(odp->u.abs.value);
1424 break;
1425
1426 case TYPE_BYTE:
1427 odp->offset = data_offset;
1428 data_offset += StoreVariableCode( data + data_offset, 1, odp);
1429 break;
1430
1431 case TYPE_WORD:
1432 odp->offset = data_offset;
1433 data_offset += StoreVariableCode( data + data_offset, 2, odp);
1434 break;
1435
1436 case TYPE_LONG:
1437 odp->offset = data_offset;
1438 data_offset += StoreVariableCode( data + data_offset, 4, odp);
1439 break;
1440
1441 case TYPE_REGISTER:
1442 case TYPE_INTERRUPT:
1443 case TYPE_CDECL:
1444 case TYPE_PASCAL:
1445 case TYPE_PASCAL_16:
1446 case TYPE_STUB:
1447 type = bsearch( &odp, typelist, nTypes, sizeof(ORDDEF *), Spec16TypeCompare );
1448 assert( type );
1449
1450 fprintf( outfile, " /* %s.%d */ ", DLLName, i );
1451 fprintf( outfile, "EP( %s, %d /* %s_%s_%s */ ),\n",
1452 odp->u.func.link_name,
1453 (type-typelist)*sizeof(CALLFROM16) -
1454 (code_offset + sizeof(ENTRYPOINT16)),
1455 (odp->type == TYPE_CDECL) ? "c" : "p",
1456 (odp->type == TYPE_REGISTER) ? "regs" :
1457 (odp->type == TYPE_INTERRUPT) ? "intr" :
1458 (odp->type == TYPE_PASCAL_16) ? "word" : "long",
1459 odp->u.func.arg_types );
1460
1461 odp->offset = code_offset;
1462 code_offset += sizeof(ENTRYPOINT16);
1463 break;
1464
1465 default:
1466 fprintf(stderr,"build: function type %d not available for Win16\n",
1467 odp->type);
1468 return -1;
1469 }
1470 }
1471
1472 fprintf( outfile, " }\n};\n" );
1473
1474 /* Output data segment */
1475
1476 DumpBytes( outfile, data, data_offset, "Data_Segment" );
1477
1478 /* Build the module */
1479
1480 module_size = BuildModule16( outfile, code_offset, data_offset );
1481
1482 /* Output the DLL descriptor */
1483
1484 if (rsrc_name[0]) fprintf( outfile, "extern const char %s[];\n\n", rsrc_name );
1485
1486 fprintf( outfile, "\nconst BUILTIN16_DESCRIPTOR %s_Descriptor = \n{\n", DLLName );
1487 fprintf( outfile, " \"%s\",\n", DLLName );
1488 fprintf( outfile, " Module,\n" );
1489 fprintf( outfile, " sizeof(Module),\n" );
1490 fprintf( outfile, " (BYTE *)&Code_Segment,\n" );
1491 fprintf( outfile, " (BYTE *)Data_Segment,\n" );
1492 fprintf( outfile, " %s\n", rsrc_name[0] ? rsrc_name : "0" );
1493 fprintf( outfile, "};\n" );
1494
1495 /* Output the DLL constructor */
1496
1497 fprintf( outfile, "static void dll_init(void) __attribute__((constructor));\n" );
1498 fprintf( outfile, "static void dll_init(void) { BUILTIN_RegisterDLL( &%s_Descriptor ); }\n",
1499 DLLName );
1500 return 0;
1501 }
1502
1503
1504 /*******************************************************************
1505 * BuildSpecFile
1506 *
1507 * Build an assembly file from a spec file.
1508 */
1509 static void BuildSpecFile( FILE *outfile, FILE *infile )
1510 {
1511 SpecFp = infile;
1512 ParseTopLevel();
1513
1514 switch(SpecType)
1515 {
1516 case SPEC_WIN16:
1517 BuildSpec16File( outfile );
1518 break;
1519 case SPEC_WIN32:
1520 BuildSpec32File( outfile );
1521 break;
1522 default:
1523 fatal_error( "Missing 'type' declaration\n" );
1524 }
1525 }
1526
1527
1528 /*******************************************************************
1529 * BuildCallFrom16Func
1530 *
1531 * Build a 16-bit-to-Wine callback glue function.
1532 *
1533 * The generated routines are intended to be used as argument conversion
1534 * routines to be called by the CallFrom16... core. Thus, the prototypes of
1535 * the generated routines are (see also CallFrom16):
1536 *
1537 * extern WORD WINAPI PREFIX_CallFrom16_C_word_xxx( FARPROC func, LPBYTE args );
1538 * extern LONG WINAPI PREFIX_CallFrom16_C_long_xxx( FARPROC func, LPBYTE args );
1539 * extern void WINAPI PREFIX_CallFrom16_C_regs_xxx( FARPROC func, LPBYTE args,
1540 * CONTEXT86 *context );
1541 * extern void WINAPI PREFIX_CallFrom16_C_intr_xxx( FARPROC func, LPBYTE args,
1542 * CONTEXT86 *context );
1543 *
1544 * where 'C' is the calling convention ('p' for pascal or 'c' for cdecl),
1545 * and each 'x' is an argument ('w'=word, 's'=signed word, 'l'=long,
1546 * 'p'=linear pointer, 't'=linear pointer to null-terminated string,
1547 * 'T'=segmented pointer to null-terminated string).
1548 *
1549 * The generated routines fetch the arguments from the 16-bit stack (pointed
1550 * to by 'args'); the offsets of the single argument values are computed
1551 * according to the calling convention and the argument types. Then, the
1552 * 32-bit entry point is called with these arguments.
1553 *
1554 * For register functions, the arguments (if present) are converted just
1555 * the same as for normal functions, but in addition the CONTEXT86 pointer
1556 * filled with the current register values is passed to the 32-bit routine.
1557 * (An 'intr' interrupt handler routine is treated exactly like a register
1558 * routine, except that upon return, the flags word pushed onto the stack
1559 * by the interrupt is removed by the 16-bit call stub.)
1560 *
1561 */
1562 static void BuildCallFrom16Func( FILE *outfile, char *profile, char *prefix, int local )
1563 {
1564 int i, pos, argsize = 0;
1565 int short_ret = 0;
1566 int reg_func = 0;
1567 int usecdecl = 0;
1568 char *args = profile + 7;
1569 char *ret_type;
1570
1571 /* Parse function type */
1572
1573 if (!strncmp( "c_", profile, 2 )) usecdecl = 1;
1574 else if (strncmp( "p_", profile, 2 ))
1575 {
1576 fprintf( stderr, "Invalid function name '%s', ignored\n", profile );
1577 return;
1578 }
1579
1580 if (!strncmp( "word_", profile + 2, 5 )) short_ret = 1;
1581 else if (!strncmp( "regs_", profile + 2, 5 )) reg_func = 1;
1582 else if (!strncmp( "intr_", profile + 2, 5 )) reg_func = 2;
1583 else if (strncmp( "long_", profile + 2, 5 ))
1584 {
1585 fprintf( stderr, "Invalid function name '%s', ignored\n", profile );
1586 return;
1587 }
1588
1589 for ( i = 0; args[i]; i++ )
1590 switch ( args[i] )
1591 {
1592 case 'w': /* word */
1593 case 's': /* s_word */
1594 argsize += 2;
1595 break;
1596
1597 case 'l': /* long or segmented pointer */
1598 case 'T': /* segmented pointer to null-terminated string */
1599 case 'p': /* linear pointer */
1600 case 't': /* linear pointer to null-terminated string */
1601 argsize += 4;
1602 break;
1603 }
1604
1605 ret_type = reg_func? "void" : short_ret? "WORD" : "LONG";
1606
1607 fprintf( outfile, "typedef %s WINAPI (*proc_%s_t)( ",
1608 ret_type, profile );
1609 args = profile + 7;
1610 for ( i = 0; args[i]; i++ )
1611 {
1612 if ( i ) fprintf( outfile, ", " );
1613 switch (args[i])
1614 {
1615 case 'w': fprintf( outfile, "WORD" ); break;
1616 case 's': fprintf( outfile, "INT16" ); break;
1617 case 'l': case 'T': fprintf( outfile, "LONG" ); break;
1618 case 'p': case 't': fprintf( outfile, "LPVOID" ); break;
1619 }
1620 }
1621 if ( reg_func )
1622 fprintf( outfile, "%sstruct _CONTEXT86 *", i? ", " : "" );
1623 else if ( !i )
1624 fprintf( outfile, "void" );
1625 fprintf( outfile, " );\n" );
1626
1627 fprintf( outfile, "%s%s WINAPI %s_CallFrom16_%s( FARPROC proc, LPBYTE args%s )\n{\n",
1628 local? "static " : "", ret_type, prefix, profile,
1629 reg_func? ", struct _CONTEXT86 *context" : "" );
1630
1631 fprintf( outfile, " %s((proc_%s_t) proc) (\n",
1632 reg_func? "" : "return ", profile );
1633 args = profile + 7;
1634 pos = !usecdecl? argsize : 0;
1635 for ( i = 0; args[i]; i++ )
1636 {
1637 if ( i ) fprintf( outfile, ",\n" );
1638 fprintf( outfile, " " );
1639 switch (args[i])
1640 {
1641 case 'w': /* word */
1642 if ( !usecdecl ) pos -= 2;
1643 fprintf( outfile, "*(WORD *)(args+%d)", pos );
1644 if ( usecdecl ) pos += 2;
1645 break;
1646
1647 case 's': /* s_word */
1648 if ( !usecdecl ) pos -= 2;
1649 fprintf( outfile, "*(INT16 *)(args+%d)", pos );
1650 if ( usecdecl ) pos += 2;
1651 break;
1652
1653 case 'l': /* long or segmented pointer */
1654 case 'T': /* segmented pointer to null-terminated string */
1655 if ( !usecdecl ) pos -= 4;
1656 fprintf( outfile, "*(LONG *)(args+%d)", pos );
1657 if ( usecdecl ) pos += 4;
1658 break;
1659
1660 case 'p': /* linear pointer */
1661 case 't': /* linear pointer to null-terminated string */
1662 if ( !usecdecl ) pos -= 4;
1663 fprintf( outfile, "PTR_SEG_TO_LIN( *(SEGPTR *)(args+%d) )", pos );
1664 if ( usecdecl ) pos += 4;
1665 break;
1666
1667 default:
1668 fprintf( stderr, "Unknown arg type '%c'\n", args[i] );
1669 }
1670 }
1671 if ( reg_func )
1672 fprintf( outfile, "%s context", i? ",\n" : "" );
1673 fprintf( outfile, " );\n}\n\n" );
1674 }
1675
1676 /*******************************************************************
1677 * BuildCallTo16Func
1678 *
1679 * Build a Wine-to-16-bit callback glue function.
1680 *
1681 * Prototypes for the CallTo16 functions:
1682 * extern WORD CALLBACK PREFIX_CallTo16_word_xxx( FARPROC16 func, args... );
1683 * extern LONG CALLBACK PREFIX_CallTo16_long_xxx( FARPROC16 func, args... );
1684 *
1685 * These routines are provided solely for convenience; they simply
1686 * write the arguments onto the 16-bit stack, and call the appropriate
1687 * CallTo16... core routine.
1688 *
1689 * If you have more sophisticated argument conversion requirements than
1690 * are provided by these routines, you might as well call the core
1691 * routines by yourself.
1692 *
1693 */
1694 static void BuildCallTo16Func( FILE *outfile, char *profile, char *prefix )
1695 {
1696 char *args = profile + 5;
1697 int i, argsize = 0, short_ret = 0;
1698
1699 if (!strncmp( "word_", profile, 5 )) short_ret = 1;
1700 else if (strncmp( "long_", profile, 5 ))
1701 {
1702 fprintf( stderr, "Invalid function name '%s'.\n", profile );
1703 exit(1);
1704 }
1705
1706 fprintf( outfile, "%s %s_CallTo16_%s( FARPROC16 proc",
1707 short_ret? "WORD" : "LONG", prefix, profile );
1708 args = profile + 5;
1709 for ( i = 0; args[i]; i++ )
1710 {
1711 fprintf( outfile, ", " );
1712 switch (args[i])
1713 {
1714 case 'w': fprintf( outfile, "WORD" ); argsize += 2; break;
1715 case 'l': fprintf( outfile, "LONG" ); argsize += 4; break;
1716 }
1717 fprintf( outfile, " arg%d", i+1 );
1718 }
1719 fprintf( outfile, " )\n{\n" );
1720
1721 if ( argsize > 0 )
1722 fprintf( outfile, " LPBYTE args = (LPBYTE)CURRENT_STACK16;\n" );
1723
1724 args = profile + 5;
1725 for ( i = 0; args[i]; i++ )
1726 {
1727 switch (args[i])
1728 {
1729 case 'w': fprintf( outfile, " args -= sizeof(WORD); *(WORD" ); break;
1730 case 'l': fprintf( outfile, " args -= sizeof(LONG); *(LONG" ); break;
1731 default: fprintf( stderr, "Unexpected case '%c' in BuildCallTo16Func\n",
1732 args[i] );
1733 }
1734 fprintf( outfile, " *)args = arg%d;\n", i+1 );
1735 }
1736
1737 fprintf( outfile, " return CallTo16%s( proc, %d );\n}\n\n",
1738 short_ret? "Word" : "Long", argsize );
1739 }
1740
1741
1742
1743 /*******************************************************************
1744 * BuildCallFrom16Core
1745 *
1746 * This routine builds the core routines used in 16->32 thunks:
1747 * CallFrom16Word, CallFrom16Long, CallFrom16Register, and CallFrom16Thunk.
1748 *
1749 * These routines are intended to be called via a far call (with 32-bit
1750 * operand size) from 16-bit code. The 16-bit code stub must push %bp,
1751 * the 32-bit entry point to be called, and the argument conversion
1752 * routine to be used (see stack layout below).
1753 *
1754 * The core routine completes the STACK16FRAME on the 16-bit stack and
1755 * switches to the 32-bit stack. Then, the argument conversion routine
1756 * is called; it gets passed the 32-bit entry point and a pointer to the
1757 * 16-bit arguments (on the 16-bit stack) as parameters. (You can either
1758 * use conversion routines automatically generated by BuildCallFrom16,
1759 * or write your own for special purposes.)
1760 *
1761 * The conversion routine must call the 32-bit entry point, passing it
1762 * the converted arguments, and return its return value to the core.
1763 * After the conversion routine has returned, the core switches back
1764 * to the 16-bit stack, converts the return value to the DX:AX format
1765 * (CallFrom16Long), and returns to the 16-bit call stub. All parameters,
1766 * including %bp, are popped off the stack.
1767 *
1768 * The 16-bit call stub now returns to the caller, popping the 16-bit
1769 * arguments if necessary (pascal calling convention).
1770 *
1771 * In the case of a 'register' function, CallFrom16Register fills a
1772 * CONTEXT86 structure with the values all registers had at the point
1773 * the first instruction of the 16-bit call stub was about to be
1774 * executed. A pointer to this CONTEXT86 is passed as third parameter
1775 * to the argument conversion routine, which typically passes it on
1776 * to the called 32-bit entry point.
1777 *
1778 * CallFrom16Thunk is a special variant used by the implementation of
1779 * the Win95 16->32 thunk functions C16ThkSL and C16ThkSL01 and is
1780 * implemented as follows:
1781 * On entry, the EBX register is set up to contain a flat pointer to the
1782 * 16-bit stack such that EBX+22 points to the first argument.
1783 * Then, the entry point is called, while EBP is set up to point
1784 * to the return address (on the 32-bit stack).
1785 * The called function returns with CX set to the number of bytes
1786 * to be popped of the caller's stack.
1787 *
1788 * Stack layout upon entry to the core routine (STACK16FRAME):
1789 * ... ...
1790 * (sp+24) word first 16-bit arg
1791 * (sp+22) word cs
1792 * (sp+20) word ip
1793 * (sp+18) word bp
1794 * (sp+14) long 32-bit entry point (reused for Win16 mutex recursion count)
1795 * (sp+12) word ip of actual entry point (necessary for relay debugging)
1796 * (sp+8) long relay (argument conversion) function entry point
1797 * (sp+4) long cs of 16-bit entry point
1798 * (sp) long ip of 16-bit entry point
1799 *
1800 * Added on the stack:
1801 * (sp-2) word saved gs
1802 * (sp-4) word saved fs
1803 * (sp-6) word saved es
1804 * (sp-8) word saved ds
1805 * (sp-12) long saved ebp
1806 * (sp-16) long saved ecx
1807 * (sp-20) long saved edx
1808 * (sp-24) long saved previous stack
1809 */
1810 static void BuildCallFrom16Core( FILE *outfile, int reg_func, int thunk, int short_ret )
1811 {
1812 char *name = thunk? "Thunk" : reg_func? "Register" : short_ret? "Word" : "Long";
1813
1814 /* Function header */
1815 fprintf( outfile, "\n\t.align 4\n" );
1816 #ifdef USE_STABS
1817 fprintf( outfile, ".stabs \"CallFrom16%s:F1\",36,0,0," PREFIX "CallFrom16%s\n",
1818 name, name);
1819 #endif
1820 fprintf( outfile, "\t.type " PREFIX "CallFrom16%s,@function\n", name );
1821 fprintf( outfile, "\t.globl " PREFIX "CallFrom16%s\n", name );
1822 fprintf( outfile, PREFIX "CallFrom16%s:\n", name );
1823
1824 /* Create STACK16FRAME (except STACK32FRAME link) */
1825 fprintf( outfile, "\tpushw %%gs\n" );
1826 fprintf( outfile, "\tpushw %%fs\n" );
1827 fprintf( outfile, "\tpushw %%es\n" );
1828 fprintf( outfile, "\tpushw %%ds\n" );
1829 fprintf( outfile, "\tpushl %%ebp\n" );
1830 fprintf( outfile, "\tpushl %%ecx\n" );
1831 fprintf( outfile, "\tpushl %%edx\n" );
1832
1833 /* Save original EFlags register */
1834 fprintf( outfile, "\tpushfl\n" );
1835
1836 if ( UsePIC )
1837 {
1838 /* Get Global Offset Table into %ecx */
1839 fprintf( outfile, "\tcall .LCallFrom16%s.getgot1\n", name );
1840 fprintf( outfile, ".LCallFrom16%s.getgot1:\n", name );
1841 fprintf( outfile, "\tpopl %%ecx\n" );
1842 fprintf( outfile, "\taddl $_GLOBAL_OFFSET_TABLE_+[.-.LCallFrom16%s.getgot1], %%ecx\n", name );
1843 }
1844
1845 /* Load 32-bit segment registers */
1846 fprintf( outfile, "\tmovw $0x%04x, %%dx\n", Data_Selector );
1847 #ifdef __svr4__
1848 fprintf( outfile, "\tdata16\n");
1849 #endif
1850 fprintf( outfile, "\tmovw %%dx, %%ds\n" );
1851 #ifdef __svr4__
1852 fprintf( outfile, "\tdata16\n");
1853 #endif
1854 fprintf( outfile, "\tmovw %%dx, %%es\n" );
1855
1856 if ( UsePIC )
1857 {
1858 fprintf( outfile, "\tmovl " PREFIX "SYSLEVEL_Win16CurrentTeb@GOT(%%ecx), %%edx\n" );
1859 fprintf( outfile, "\tmovw (%%edx), %%fs\n" );
1860 }
1861 else
1862 fprintf( outfile, "\tmovw " PREFIX "SYSLEVEL_Win16CurrentTeb, %%fs\n" );
1863
1864 /* Get address of ldt_copy array into %ecx */
1865 if ( UsePIC )
1866 fprintf( outfile, "\tmovl " PREFIX "ldt_copy@GOT(%%ecx), %%ecx\n" );
1867 else
1868 fprintf( outfile, "\tmovl $" PREFIX "ldt_copy, %%ecx\n" );
1869
1870 /* Translate STACK16FRAME base to flat offset in %edx */
1871 fprintf( outfile, "\tmovw %%ss, %%dx\n" );
1872 fprintf( outfile, "\tandl $0xfff8, %%edx\n" );
1873 fprintf( outfile, "\tmovl (%%ecx,%%edx), %%edx\n" );
1874 fprintf( outfile, "\tmovzwl %%sp, %%ebp\n" );
1875 fprintf( outfile, "\tleal (%%ebp,%%edx), %%edx\n" );
1876
1877 /* Get saved flags into %ecx */
1878 fprintf( outfile, "\tpopl %%ecx\n" );
1879
1880 /* Get the 32-bit stack pointer from the TEB and complete STACK16FRAME */
1881 fprintf( outfile, "\t.byte 0x64\n\tmovl (%d), %%ebp\n", STACKOFFSET );
1882 fprintf( outfile, "\tpushl %%ebp\n" );
1883
1884 /* Switch stacks */
1885 #ifdef __svr4__
1886 fprintf( outfile,"\tdata16\n");
1887 #endif
1888 fprintf( outfile, "\t.byte 0x64\n\tmovw %%ss, (%d)\n", STACKOFFSET + 2 );
1889 fprintf( outfile, "\t.byte 0x64\n\tmovw %%sp, (%d)\n", STACKOFFSET );
1890 fprintf( outfile, "\tpushl %%ds\n" );
1891 fprintf( outfile, "\tpopl %%ss\n" );
1892 fprintf( outfile, "\tmovl %%ebp, %%esp\n" );
1893 fprintf( outfile, "\taddl $%d, %%ebp\n", STRUCTOFFSET(STACK32FRAME, ebp) );
1894
1895
1896 /* At this point:
1897 STACK16FRAME is completely set up
1898 DS, ES, SS: flat data segment
1899 FS: current TEB
1900 ESP: points to last STACK32FRAME
1901 EBP: points to ebp member of last STACK32FRAME
1902 EDX: points to current STACK16FRAME
1903 ECX: contains saved flags
1904 all other registers: unchanged */
1905
1906 /* Special case: C16ThkSL stub */
1907 if ( thunk )
1908 {
1909 /* Set up registers as expected and call thunk */
1910 fprintf( outfile, "\tleal %d(%%edx), %%ebx\n", sizeof(STACK16FRAME)-22 );
1911 fprintf( outfile, "\tleal -4(%%esp), %%ebp\n" );
1912
1913 fprintf( outfile, "\tcall *%d(%%edx)\n", STACK16OFFSET(entry_point) );
1914
1915 /* Switch stack back */
1916 /* fprintf( outfile, "\t.byte 0x64\n\tlssw (%d), %%sp\n", STACKOFFSET ); */
1917 fprintf( outfile, "\t.byte 0x64,0x66,0x0f,0xb2,0x25\n\t.long %d\n", STACKOFFSET );
1918 fprintf( outfile, "\t.byte 0x64\n\tpopl (%d)\n", STACKOFFSET );
1919
1920 /* Restore registers and return directly to caller */
1921 fprintf( outfile, "\taddl $8, %%esp\n" );
1922 fprintf( outfile, "\tpopl %%ebp\n" );
1923 fprintf( outfile, "\tpopw %%ds\n" );
1924 fprintf( outfile, "\tpopw %%es\n" );
1925 fprintf( outfile, "\tpopw %%fs\n" );
1926 fprintf( outfile, "\tpopw %%gs\n" );
1927 fprintf( outfile, "\taddl $20, %%esp\n" );
1928
1929 fprintf( outfile, "\txorb %%ch, %%ch\n" );
1930 fprintf( outfile, "\tpopl %%ebx\n" );
1931 fprintf( outfile, "\taddw %%cx, %%sp\n" );
1932 fprintf( outfile, "\tpush %%ebx\n" );
1933
1934 fprintf( outfile, "\t.byte 0x66\n" );
1935 fprintf( outfile, "\tlret\n" );
1936
1937 return;
1938 }
1939
1940
1941 /* Build register CONTEXT */
1942 if ( reg_func )
1943 {
1944 fprintf( outfile, "\tsubl $%d, %%esp\n", sizeof(CONTEXT86) );
1945
1946 fprintf( outfile, "\tmovl %%ecx, %d(%%esp)\n", CONTEXTOFFSET(EFlags) );
1947
1948 fprintf( outfile, "\tmovl %%eax, %d(%%esp)\n", CONTEXTOFFSET(Eax) );
1949 fprintf( outfile, "\tmovl %%ebx, %d(%%esp)\n", CONTEXTOFFSET(Ebx) );
1950 fprintf( outfile, "\tmovl %%esi, %d(%%esp)\n", CONTEXTOFFSET(Esi) );
1951 fprintf( outfile, "\tmovl %%edi, %d(%%esp)\n", CONTEXTOFFSET(Edi) );
1952
1953 fprintf( outfile, "\tmovl %d(%%edx), %%eax\n", STACK16OFFSET(ebp) );
1954 fprintf( outfile, "\tmovl %%eax, %d(%%esp)\n", CONTEXTOFFSET(Ebp) );
1955 fprintf( outfile, "\tmovl %d(%%edx), %%eax\n", STACK16OFFSET(ecx) );
1956 fprintf( outfile, "\tmovl %%eax, %d(%%esp)\n", CONTEXTOFFSET(Ecx) );
1957 fprintf( outfile, "\tmovl %d(%%edx), %%eax\n", STACK16OFFSET(edx) );
1958 fprintf( outfile, "\tmovl %%eax, %d(%%esp)\n", CONTEXTOFFSET(Edx) );
1959
1960 fprintf( outfile, "\tmovzwl %d(%%edx), %%eax\n", STACK16OFFSET(ds) );
1961 fprintf( outfile, "\tmovl %%eax, %d(%%esp)\n", CONTEXTOFFSET(SegDs) );
1962 fprintf( outfile, "\tmovzwl %d(%%edx), %%eax\n", STACK16OFFSET(es) );
1963 fprintf( outfile, "\tmovl %%eax, %d(%%esp)\n", CONTEXTOFFSET(SegEs) );
1964 fprintf( outfile, "\tmovzwl %d(%%edx), %%eax\n", STACK16OFFSET(fs) );
1965 fprintf( outfile, "\tmovl %%eax, %d(%%esp)\n", CONTEXTOFFSET(SegFs) );
1966 fprintf( outfile, "\tmovzwl %d(%%edx), %%eax\n", STACK16OFFSET(gs) );
1967 fprintf( outfile, "\tmovl %%eax, %d(%%esp)\n", CONTEXTOFFSET(SegGs) );
1968
1969 fprintf( outfile, "\tmovzwl %d(%%edx), %%eax\n", STACK16OFFSET(cs) );
1970 fprintf( outfile, "\tmovl %%eax, %d(%%esp)\n", CONTEXTOFFSET(SegCs) );
1971 fprintf( outfile, "\tmovzwl %d(%%edx), %%eax\n", STACK16OFFSET(ip) );
1972 fprintf( outfile, "\tmovl %%eax, %d(%%esp)\n", CONTEXTOFFSET(Eip) );
1973
1974 fprintf( outfile, "\t.byte 0x64\n\tmovzwl (%d), %%eax\n", STACKOFFSET+2 );
1975 fprintf( outfile, "\tmovl %%eax, %d(%%esp)\n", CONTEXTOFFSET(SegSs) );
1976 fprintf( outfile, "\t.byte 0x64\n\tmovzwl (%d), %%eax\n", STACKOFFSET );
1977 fprintf( outfile, "\taddl $%d, %%eax\n", STACK16OFFSET(ip) );
1978 fprintf( outfile, "\tmovl %%eax, %d(%%esp)\n", CONTEXTOFFSET(Esp) );
1979 #if 0
1980 fprintf( outfile, "\tfsave %d(%%esp)\n", CONTEXTOFFSET(FloatSave) );
1981 #endif
1982
1983 /* Push address of CONTEXT86 structure -- popped by the relay routine */
1984 fprintf( outfile, "\tpushl %%esp\n" );
1985 }
1986
1987
1988 /* Print debug info before call */
1989 if ( debugging )
1990 {
1991 if ( UsePIC )
1992 {
1993 fprintf( outfile, "\tpushl %%ebx\n" );
1994
1995 /* Get Global Offset Table into %ebx (for PLT call) */
1996 fprintf( outfile, "\tcall .LCallFrom16%s.getgot2\n", name );
1997 fprintf( outfile, ".LCallFrom16%s.getgot2:\n", name );
1998 fprintf( outfile, "\tpopl %%ebx\n" );
1999 fprintf( outfile, "\taddl $_GLOBAL_OFFSET_TABLE_+[.-.LCallFrom16%s.getgot2], %%ebx\n", name );
2000 }
2001
2002 fprintf( outfile, "\tpushl %%edx\n" );
2003 if ( reg_func )
2004 fprintf( outfile, "\tleal -%d(%%ebp), %%eax\n\tpushl %%eax\n",
2005 sizeof(CONTEXT) + STRUCTOFFSET(STACK32FRAME, ebp) );
2006 else
2007 fprintf( outfile, "\tpushl $0\n" );
2008
2009 if ( UsePIC )
2010 fprintf( outfile, "\tcall " PREFIX "RELAY_DebugCallFrom16@PLT\n ");
2011 else
2012 fprintf( outfile, "\tcall " PREFIX "RELAY_DebugCallFrom16\n ");
2013
2014 fprintf( outfile, "\tpopl %%edx\n" );
2015 fprintf( outfile, "\tpopl %%edx\n" );
2016
2017 if ( UsePIC )
2018 fprintf( outfile, "\tpopl %%ebx\n" );
2019 }
2020
2021 /* Call relay routine (which will call the API entry point) */
2022 fprintf( outfile, "\tleal %d(%%edx), %%eax\n", sizeof(STACK16FRAME) );
2023 fprintf( outfile, "\tpushl %%eax\n" );
2024 fprintf( outfile, "\tpushl %d(%%edx)\n", STACK16OFFSET(entry_point) );
2025 fprintf( outfile, "\tcall *%d(%%edx)\n", STACK16OFFSET(relay) );
2026
2027 /* Print debug info after call */
2028 if ( debugging )
2029 {
2030 if ( UsePIC )
2031 {
2032 fprintf( outfile, "\tpushl %%ebx\n" );
2033
2034 /* Get Global Offset Table into %ebx (for PLT call) */
2035 fprintf( outfile, "\tcall .LCallFrom16%s.getgot3\n", name );
2036 fprintf( outfile, ".LCallFrom16%s.getgot3:\n", name );
2037 fprintf( outfile, "\tpopl %%ebx\n" );
2038 fprintf( outfile, "\taddl $_GLOBAL_OFFSET_TABLE_+[.-.LCallFrom16%s.getgot3], %%ebx\n", name );
2039 }
2040
2041 fprintf( outfile, "\tpushl %%eax\n" );
2042 if ( reg_func )
2043 fprintf( outfile, "\tleal -%d(%%ebp), %%eax\n\tpushl %%eax\n",
2044 sizeof(CONTEXT) + STRUCTOFFSET(STACK32FRAME, ebp) );
2045 else
2046 fprintf( outfile, "\tpushl $0\n" );
2047
2048 if ( UsePIC )
2049 fprintf( outfile, "\tcall " PREFIX "RELAY_DebugCallFrom16Ret@PLT\n ");
2050 else
2051 fprintf( outfile, "\tcall " PREFIX "RELAY_DebugCallFrom16Ret\n ");
2052
2053 fprintf( outfile, "\tpopl %%eax\n" );
2054 fprintf( outfile, "\tpopl %%eax\n" );
2055
2056 if ( UsePIC )
2057 fprintf( outfile, "\tpopl %%ebx\n" );
2058 }
2059
2060
2061 if ( reg_func )
2062 {
2063 fprintf( outfile, "\tmovl %%esp, %%ebx\n" );
2064
2065 /* Switch stack back */
2066 /* fprintf( outfile, "\t.byte 0x64\n\tlssw (%d), %%sp\n", STACKOFFSET ); */
2067 fprintf( outfile, "\t.byte 0x64,0x66,0x0f,0xb2,0x25\n\t.long %d\n", STACKOFFSET );
2068 fprintf( outfile, "\t.byte 0x64\n\tpopl (%d)\n", STACKOFFSET );
2069
2070 /* Get return address to CallFrom16 stub */
2071 fprintf( outfile, "\taddw $%d, %%sp\n", STACK16OFFSET(callfrom_ip)-4 );
2072 fprintf( outfile, "\tpopl %%eax\n" );
2073 fprintf( outfile, "\tpopl %%edx\n" );
2074
2075 /* Restore all registers from CONTEXT */
2076 fprintf( outfile, "\tmovw %d(%%ebx), %%ss\n", CONTEXTOFFSET(SegSs) );
2077 fprintf( outfile, "\tmovl %d(%%ebx), %%esp\n", CONTEXTOFFSET(Esp) );
2078 fprintf( outfile, "\taddl $4, %%esp\n" ); /* room for final return address */
2079
2080 fprintf( outfile, "\tpushw %d(%%ebx)\n", CONTEXTOFFSET(SegCs) );
2081 fprintf( outfile, "\tpushw %d(%%ebx)\n", CONTEXTOFFSET(Eip) );
2082 fprintf( outfile, "\tpushl %%edx\n" );
2083 fprintf( outfile, "\tpushl %%eax\n" );
2084 fprintf( outfile, "\tpushl %d(%%ebx)\n", CONTEXTOFFSET(EFlags) );
2085 fprintf( outfile, "\tpushl %d(%%ebx)\n", CONTEXTOFFSET(SegDs) );
2086
2087 fprintf( outfile, "\tmovw %d(%%ebx), %%es\n", CONTEXTOFFSET(SegEs) );
2088 fprintf( outfile, "\tmovw %d(%%ebx), %%fs\n", CONTEXTOFFSET(SegFs) );
2089 fprintf( outfile, "\tmovw %d(%%ebx), %%gs\n", CONTEXTOFFSET(SegGs) );
2090
2091 fprintf( outfile, "\tmovl %d(%%ebx), %%ebp\n", CONTEXTOFFSET(Ebp) );
2092 fprintf( outfile, "\tmovl %d(%%ebx), %%esi\n", CONTEXTOFFSET(Esi) );
2093 fprintf( outfile, "\tmovl %d(%%ebx), %%edi\n", CONTEXTOFFSET(Edi) );
2094 fprintf( outfile, "\tmovl %d(%%ebx), %%eax\n", CONTEXTOFFSET(Eax) );
2095 fprintf( outfile, "\tmovl %d(%%ebx), %%edx\n", CONTEXTOFFSET(Edx) );
2096 fprintf( outfile, "\tmovl %d(%%ebx), %%ecx\n", CONTEXTOFFSET(Ecx) );
2097 fprintf( outfile, "\tmovl %d(%%ebx), %%ebx\n", CONTEXTOFFSET(Ebx) );
2098
2099 fprintf( outfile, "\tpopl %%ds\n" );
2100 fprintf( outfile, "\tpopfl\n" );
2101 fprintf( outfile, "\tlret\n" );
2102 }
2103 else
2104 {
2105 /* Switch stack back */
2106 /* fprintf( outfile, "\t.byte 0x64\n\tlssw (%d), %%sp\n", STACKOFFSET ); */
2107 fprintf( outfile, "\t.byte 0x64,0x66,0x0f,0xb2,0x25\n\t.long %d\n", STACKOFFSET );
2108 fprintf( outfile, "\t.byte 0x64\n\tpopl (%d)\n", STACKOFFSET );
2109
2110 /* Restore registers */
2111 fprintf( outfile, "\tpopl %%edx\n" );
2112 fprintf( outfile, "\tpopl %%ecx\n" );
2113 fprintf( outfile, "\tpopl %%ebp\n" );
2114 fprintf( outfile, "\tpopw %%ds\n" );
2115 fprintf( outfile, "\tpopw %%es\n" );
2116 fprintf( outfile, "\tpopw %%fs\n" );
2117 fprintf( outfile, "\tpopw %%gs\n" );
2118
2119 /* Prepare return value and set flags accordingly */
2120 if ( !short_ret )
2121 fprintf( outfile, "\tshldl $16, %%eax, %%edx\n" );
2122 fprintf( outfile, "\torl %%eax, %%eax\n" );
2123
2124 /* Return to return stub which will return to caller */
2125 fprintf( outfile, "\tlret $12\n" );
2126 }
2127 }
2128
2129
2130 /*******************************************************************
2131 * BuildCallTo16Core
2132 *
2133 * This routine builds the core routines used in 32->16 thunks:
2134 *
2135 * extern void CALLBACK CallTo16Word( SEGPTR target, int nb_args );
2136 * extern void CALLBACK CallTo16Long( SEGPTR target, int nb_args );
2137 * extern void CALLBACK CallTo16RegisterShort( const CONTEXT86 *context, int nb_args );
2138 * extern void CALLBACK CallTo16RegisterLong ( const CONTEXT86 *context, int nb_args );
2139 *
2140 * These routines can be called directly from 32-bit code.
2141 *
2142 * All routines expect that the 16-bit stack contents (arguments) were
2143 * already set up by the caller; nb_args must contain the number of bytes
2144 * to be conserved. The 16-bit SS:SP will be set accordinly.
2145 *
2146 * All other registers are either taken from the CONTEXT86 structure
2147 * or else set to default values. The target routine address is either
2148 * given directly or taken from the CONTEXT86.
2149 *
2150 * If you want to call a 16-bit routine taking only standard argument types
2151 * (WORD and LONG), you can also have an appropriate argument conversion
2152 * stub automatically generated (see BuildCallTo16); you'd then call this
2153 * stub, which in turn would prepare the 16-bit stack and call the appropiate
2154 * core routine.
2155 *
2156 */
2157
2158 static void BuildCallTo16Core( FILE *outfile, int short_ret, int reg_func )
2159 {
2160 char *name = reg_func == 2 ? "RegisterLong" :
2161 reg_func == 1 ? "RegisterShort" :
2162 short_ret? "Word" : "Long";
2163
2164 /* Function header */
2165 fprintf( outfile, "\n\t.align 4\n" );
2166 #ifdef USE_STABS
2167 fprintf( outfile, ".stabs \"CallTo16%s:F1\",36,0,0," PREFIX "CallTo16%s\n",
2168 name, name);
2169 #endif
2170 fprintf( outfile, "\t.globl " PREFIX "CallTo16%s\n", name );
2171 fprintf( outfile, PREFIX "CallTo16%s:\n", name );
2172
2173 /* Function entry sequence */
2174 fprintf( outfile, "\tpushl %%ebp\n" );
2175 fprintf( outfile, "\tmovl %%esp, %%ebp\n" );
2176
2177 /* Save the 32-bit registers */
2178 fprintf( outfile, "\tpushl %%ebx\n" );
2179 fprintf( outfile, "\tpushl %%ecx\n" );
2180 fprintf( outfile, "\tpushl %%edx\n" );
2181 fprintf( outfile, "\tpushl %%esi\n" );
2182 fprintf( outfile, "\tpushl %%edi\n" );
2183
2184 if ( UsePIC )
2185 {
2186 /* Get Global Offset Table into %ebx */
2187 fprintf( outfile, "\tcall .LCallTo16%s.getgot1\n", name );
2188 fprintf( outfile, ".LCallTo16%s.getgot1:\n", name );
2189 fprintf( outfile, "\tpopl %%ebx\n" );
2190 fprintf( outfile, "\taddl $_GLOBAL_OFFSET_TABLE_+[.-.LCallTo16%s.getgot1], %%ebx\n", name );
2191 }
2192
2193 /* Enter Win16 Mutex */
2194 if ( UsePIC )
2195 fprintf( outfile, "\tcall " PREFIX "SYSLEVEL_EnterWin16Lock@PLT\n" );
2196 else
2197 fprintf( outfile, "\tcall " PREFIX "SYSLEVEL_EnterWin16Lock\n" );
2198
2199 /* Print debugging info */
2200 if (debugging)
2201 {
2202 /* Push flags, number of arguments, and target */
2203 fprintf( outfile, "\tpushl $%d\n", reg_func );
2204 fprintf( outfile, "\tpushl 12(%%ebp)\n" );
2205 fprintf( outfile, "\tpushl 8(%%ebp)\n" );
2206
2207 if ( UsePIC )
2208 fprintf( outfile, "\tcall " PREFIX "RELAY_DebugCallTo16@PLT\n" );
2209 else
2210 fprintf( outfile, "\tcall " PREFIX "RELAY_DebugCallTo16\n" );
2211
2212 fprintf( outfile, "\taddl $12, %%esp\n" );
2213 }
2214
2215 /* Get return address */
2216 if ( UsePIC )
2217 fprintf( outfile, "\tmovl " PREFIX "CallTo16_RetAddr@GOTOFF(%%ebx), %%ecx\n" );
2218 else
2219 fprintf( outfile, "\tmovl " PREFIX "CallTo16_RetAddr, %%ecx\n" );
2220
2221 /* Call the actual CallTo16 routine (simulate a lcall) */
2222 fprintf( outfile, "\tpushl %%cs\n" );
2223 fprintf( outfile, "\tcall .LCallTo16%s\n", name );
2224
2225 /* Convert and push return value */
2226 if ( short_ret )
2227 {
2228 fprintf( outfile, "\tmovzwl %%ax, %%eax\n" );
2229 fprintf( outfile, "\tpushl %%eax\n" );
2230 }
2231 else if ( reg_func != 2 )
2232 {
2233 fprintf( outfile, "\tshll $16,%%edx\n" );
2234 fprintf( outfile, "\tmovw %%ax,%%dx\n" );
2235 fprintf( outfile, "\tpushl %%edx\n" );
2236 }
2237 else
2238 fprintf( outfile, "\tpushl %%eax\n" );
2239
2240 if ( UsePIC )
2241 {
2242 /* Get Global Offset Table into %ebx (might have been overwritten) */
2243 fprintf( outfile, "\tcall .LCallTo16%s.getgot2\n", name );
2244 fprintf( outfile, ".LCallTo16%s.getgot2:\n", name );
2245 fprintf( outfile, "\tpopl %%ebx\n" );
2246 fprintf( outfile, "\taddl $_GLOBAL_OFFSET_TABLE_+[.-.LCallTo16%s.getgot2], %%ebx\n", name );
2247 }
2248
2249 /* Print debugging info */
2250 if (debugging)
2251 {
2252 if ( UsePIC )
2253 fprintf( outfile, "\tcall " PREFIX "RELAY_DebugCallTo16Ret@PLT\n" );
2254 else
2255 fprintf( outfile, "\tcall " PREFIX "RELAY_DebugCallTo16Ret\n" );
2256 }
2257
2258 /* Leave Win16 Mutex */
2259 if ( UsePIC )
2260 fprintf( outfile, "\tcall " PREFIX "SYSLEVEL_LeaveWin16Lock@PLT\n" );
2261 else
2262 fprintf( outfile, "\tcall " PREFIX "SYSLEVEL_LeaveWin16Lock\n" );
2263
2264 /* Get return value */
2265 fprintf( outfile, "\tpopl %%eax\n" );
2266
2267 /* Restore the 32-bit registers */
2268 fprintf( outfile, "\tpopl %%edi\n" );
2269 fprintf( outfile, "\tpopl %%esi\n" );
2270 fprintf( outfile, "\tpopl %%edx\n" );
2271 fprintf( outfile, "\tpopl %%ecx\n" );
2272 fprintf( outfile, "\tpopl %%ebx\n" );
2273
2274 /* Function exit sequence */
2275 fprintf( outfile, "\tpopl %%ebp\n" );
2276 fprintf( outfile, "\tret $8\n" );
2277
2278
2279 /* Start of the actual CallTo16 routine */
2280
2281 fprintf( outfile, ".LCallTo16%s:\n", name );
2282
2283 /* Complete STACK32FRAME */
2284 fprintf( outfile, "\t.byte 0x64\n\tpushl (%d)\n", STACKOFFSET );
2285 fprintf( outfile, "\tmovl %%esp,%%edx\n" );
2286
2287 /* Switch to the 16-bit stack */
2288 #ifdef __svr4__
2289 fprintf( outfile,"\tdata16\n");
2290 #endif
2291 fprintf( outfile, "\t.byte 0x64\n\tmovw (%d),%%ss\n", STACKOFFSET + 2);
2292 fprintf( outfile, "\t.byte 0x64\n\tmovw (%d),%%sp\n", STACKOFFSET );
2293 fprintf( outfile, "\t.byte 0x64\n\tmovl %%edx,(%d)\n", STACKOFFSET );
2294
2295 /* Make %bp point to the previous stackframe (built by CallFrom16) */
2296 fprintf( outfile, "\tmovzwl %%sp,%%ebp\n" );
2297 fprintf( outfile, "\tleal %d(%%ebp),%%ebp\n", STACK16OFFSET(bp) );
2298
2299 /* Add the specified offset to the new sp */
2300 fprintf( outfile, "\tsubw %d(%%edx), %%sp\n", STACK32OFFSET(nb_args) );
2301
2302 /* Push the return address
2303 * With sreg suffix, we push 16:16 address (normal lret)
2304 * With lreg suffix, we push 16:32 address (0x66 lret, for KERNEL32_45)
2305 */
2306 if (reg_func != 2)
2307 fprintf( outfile, "\tpushl %%ecx\n" );
2308 else
2309 {
2310 fprintf( outfile, "\tshldl $16, %%ecx, %%eax\n" );
2311 fprintf( outfile, "\tpushw $0\n" );
2312 fprintf( outfile, "\tpushw %%ax\n" );
2313 fprintf( outfile, "\tpushw $0\n" );
2314 fprintf( outfile, "\tpushw %%cx\n" );
2315 }
2316
2317 if (reg_func)
2318 {
2319 /* Push the called routine address */
2320 fprintf( outfile, "\tmovl %d(%%edx),%%edx\n", STACK32OFFSET(target) );
2321 fprintf( outfile, "\tpushw %d(%%edx)\n", CONTEXTOFFSET(SegCs) );
2322 fprintf( outfile, "\tpushw %d(%%edx)\n", CONTEXTOFFSET(Eip) );
2323
2324 /* Get the registers */
2325 fprintf( outfile, "\tpushw %d(%%edx)\n", CONTEXTOFFSET(SegDs) );
2326 fprintf( outfile, "\tmovl %d(%%edx),%%eax\n", CONTEXTOFFSET(SegEs) );
2327 fprintf( outfile, "\tmovw %%ax,%%es\n" );
2328 fprintf( outfile, "\tmovl %d(%%edx),%%eax\n", CONTEXTOFFSET(SegFs) );
2329 fprintf( outfile, "\tmovw %%ax,%%fs\n" );
2330 fprintf( outfile, "\tmovl %d(%%edx),%%ebp\n", CONTEXTOFFSET(Ebp) );
2331 fprintf( outfile, "\tmovl %d(%%edx),%%esi\n", CONTEXTOFFSET(Esi) );
2332 fprintf( outfile, "\tmovl %d(%%edx),%%edi\n", CONTEXTOFFSET(Edi) );
2333 fprintf( outfile, "\tmovl %d(%%edx),%%eax\n", CONTEXTOFFSET(Eax) );
2334 fprintf( outfile, "\tmovl %d(%%edx),%%ebx\n", CONTEXTOFFSET(Ebx) );
2335 fprintf( outfile, "\tmovl %d(%%edx),%%ecx\n", CONTEXTOFFSET(Ecx) );
2336 fprintf( outfile, "\tmovl %d(%%edx),%%edx\n", CONTEXTOFFSET(Edx) );
2337
2338 /* Get the 16-bit ds */
2339 fprintf( outfile, "\tpopw %%ds\n" );
2340 }
2341 else /* not a register function */
2342 {
2343 /* Push the called routine address */
2344 fprintf( outfile, "\tpushl %d(%%edx)\n", STACK32OFFSET(target) );
2345
2346 /* Set %fs to the value saved by the last CallFrom16 */
2347 fprintf( outfile, "\tmovw %d(%%ebp),%%ax\n", STACK16OFFSET(fs)-STACK16OFFSET(bp) );
2348 fprintf( outfile, "\tmovw %%ax,%%fs\n" );
2349
2350 /* Set %ds and %es (and %ax just in case) equal to %ss */
2351 fprintf( outfile, "\tmovw %%ss,%%ax\n" );
2352 fprintf( outfile, "\tmovw %%ax,%%ds\n" );
2353 fprintf( outfile, "\tmovw %%ax,%%es\n" );
2354 }
2355
2356 /* Jump to the called routine */
2357 fprintf( outfile, "\t.byte 0x66\n" );
2358 fprintf( outfile, "\tlret\n" );
2359 }
2360
2361 /*******************************************************************
2362 * BuildRet16Func
2363 *
2364 * Build the return code for 16-bit callbacks
2365 */
2366 static void BuildRet16Func( FILE *outfile )
2367 {
2368 /*
2369 * Note: This must reside in the .data section to allow
2370 * run-time relocation of the SYSLEVEL_Win16CurrentTeb symbol
2371 */
2372
2373 fprintf( outfile, "\n\t.globl " PREFIX "CallTo16_Ret\n" );
2374 fprintf( outfile, PREFIX "CallTo16_Ret:\n" );
2375
2376 /* Restore 32-bit segment registers */
2377
2378 fprintf( outfile, "\tmovw $0x%04x,%%bx\n", Data_Selector );
2379 #ifdef __svr4__
2380 fprintf( outfile, "\tdata16\n");
2381 #endif
2382 fprintf( outfile, "\tmovw %%bx,%%ds\n" );
2383 #ifdef __svr4__
2384 fprintf( outfile, "\tdata16\n");
2385 #endif
2386 fprintf( outfile, "\tmovw %%bx,%%es\n" );
2387
2388 fprintf( outfile, "\tmovw " PREFIX "SYSLEVEL_Win16CurrentTeb,%%fs\n" );
2389
2390 /* Restore the 32-bit stack */
2391
2392 #ifdef __svr4__
2393 fprintf( outfile, "\tdata16\n");
2394 #endif
2395 fprintf( outfile, "\tmovw %%bx,%%ss\n" );
2396 fprintf( outfile, "\t.byte 0x64\n\tmovl (%d),%%esp\n", STACKOFFSET );
2397 fprintf( outfile, "\t.byte 0x64\n\tpopl (%d)\n", STACKOFFSET );
2398
2399 /* Return to caller */
2400
2401 fprintf( outfile, "\tlret\n" );
2402
2403 /* Declare the return address variable */
2404
2405 fprintf( outfile, "\n\t.globl " PREFIX "CallTo16_RetAddr\n" );
2406 fprintf( outfile, PREFIX "CallTo16_RetAddr:\t.long 0\n" );
2407 }
2408
2409 /*******************************************************************
2410 * BuildCallTo32CBClient
2411 *
2412 * Call a CBClient relay stub from 32-bit code (KERNEL.620).
2413 *
2414 * Since the relay stub is itself 32-bit, this should not be a problem;
2415 * unfortunately, the relay stubs are expected to switch back to a
2416 * 16-bit stack (and 16-bit code) after completion :-(
2417 *
2418 * This would conflict with our 16- vs. 32-bit stack handling, so
2419 * we simply switch *back* to our 32-bit stack before returning to
2420 * the caller ...
2421 *
2422 * The CBClient relay stub expects to be called with the following
2423 * 16-bit stack layout, and with ebp and ebx pointing into the 16-bit
2424 * stack at the designated places:
2425 *
2426 * ...
2427 * (ebp+14) original arguments to the callback routine
2428 * (ebp+10) far return address to original caller
2429 * (ebp+6) Thunklet target address
2430 * (ebp+2) Thunklet relay ID code
2431 * (ebp) BP (saved by CBClientGlueSL)
2432 * (ebp-2) SI (saved by CBClientGlueSL)
2433 * (ebp-4) DI (saved by CBClientGlueSL)
2434 * (ebp-6) DS (saved by CBClientGlueSL)
2435 *
2436 * ... buffer space used by the 16-bit side glue for temp copies
2437 *
2438 * (ebx+4) far return address to 16-bit side glue code
2439 * (ebx) saved 16-bit ss:sp (pointing to ebx+4)
2440 *
2441 * The 32-bit side glue code accesses both the original arguments (via ebp)
2442 * and the temporary copies prepared by the 16-bit side glue (via ebx).
2443 * After completion, the stub will load ss:sp from the buffer at ebx
2444 * and perform a far return to 16-bit code.
2445 *
2446 * To trick the relay stub into returning to us, we replace the 16-bit
2447 * return address to the glue code by a cs:ip pair pointing to our
2448 * return entry point (the original return address is saved first).
2449 * Our return stub thus called will then reload the 32-bit ss:esp and
2450 * return to 32-bit code (by using and ss:esp value that we have also
2451 * pushed onto the 16-bit stack before and a cs:eip values found at
2452 * that position on the 32-bit stack). The ss:esp to be restored is
2453 * found relative to the 16-bit stack pointer at:
2454 *
2455 * (ebx-4) ss (flat)
2456 * (ebx-8) sp (32-bit stack pointer)
2457 *
2458 * The second variant of this routine, CALL32_CBClientEx, which is used
2459 * to implement KERNEL.621, has to cope with yet another problem: Here,
2460 * the 32-bit side directly returns to the caller of the CBClient thunklet,
2461 * restoring registers saved by CBClientGlueSL and cleaning up the stack.
2462 * As we have to return to our 32-bit code first, we have to adapt the
2463 * layout of our temporary area so as to include values for the registers
2464 * that are to be restored, and later (in the implementation of KERNEL.621)
2465 * we *really* restore them. The return stub restores DS, DI, SI, and BP
2466 * from the stack, skips the next 8 bytes (CBClient relay code / target),
2467 * and then performs a lret NN, where NN is the number of arguments to be
2468 * removed. Thus, we prepare our temporary area as follows:
2469 *
2470 * (ebx+22) 16-bit cs (this segment)
2471 * (ebx+20) 16-bit ip ('16-bit' return entry point)
2472 * (ebx+16) 32-bit ss (flat)
2473 * (ebx+12) 32-bit sp (32-bit stack pointer)
2474 * (ebx+10) 16-bit bp (points to ebx+24)
2475 * (ebx+8) 16-bit si (ignored)
2476 * (ebx+6) 16-bit di (ignored)
2477 * (ebx+4) 16-bit ds (we actually use the flat DS here)
2478 * (ebx+2) 16-bit ss (16-bit stack segment)
2479 * (ebx+0) 16-bit sp (points to ebx+4)
2480 *
2481 * Note that we ensure that DS is not changed and remains the flat segment,
2482 * and the 32-bit stack pointer our own return stub needs fits just
2483 * perfectly into the 8 bytes that are skipped by the Windows stub.
2484 * One problem is that we have to determine the number of removed arguments,
2485 * as these have to be really removed in KERNEL.621. Thus, the BP value
2486 * that we place in the temporary area to be restored, contains the value
2487 * that SP would have if no arguments were removed. By comparing the actual
2488 * value of SP with this value in our return stub we can compute the number
2489 * of removed arguments. This is then returned to KERNEL.621.
2490 *
2491 * The stack layout of this function:
2492 * (ebp+20) nArgs pointer to variable receiving nr. of args (Ex only)
2493 * (ebp+16) esi pointer to caller's esi value
2494 * (ebp+12) arg ebp value to be set for relay stub
2495 * (ebp+8) func CBClient relay stub address
2496 * (ebp+4) ret addr
2497 * (ebp) ebp
2498 */
2499 static void BuildCallTo32CBClient( FILE *outfile, BOOL isEx )
2500 {
2501 char *name = isEx? "CBClientEx" : "CBClient";
2502 int size = isEx? 24 : 12;
2503
2504 /* Function header */
2505
2506 fprintf( outfile, "\n\t.align 4\n" );
2507 #ifdef USE_STABS
2508 fprintf( outfile, ".stabs \"CALL32_%s:F1\",36,0,0," PREFIX "CALL32_%s\n",
2509 name, name );
2510 #endif
2511 fprintf( outfile, "\t.globl " PREFIX "CALL32_%s\n", name );
2512 fprintf( outfile, PREFIX "CALL32_%s:\n", name );
2513
2514 /* Entry code */
2515
2516 fprintf( outfile, "\tpushl %%ebp\n" );
2517 fprintf( outfile, "\tmovl %%esp,%%ebp\n" );
2518 fprintf( outfile, "\tpushl %%edi\n" );
2519 fprintf( outfile, "\tpushl %%esi\n" );
2520 fprintf( outfile, "\tpushl %%ebx\n" );
2521
2522 /* Get the 16-bit stack */
2523
2524 fprintf( outfile, "\t.byte 0x64\n\tmovl (%d),%%ebx\n", STACKOFFSET);
2525
2526 /* Convert it to a flat address */
2527
2528 fprintf( outfile, "\tshldl $16,%%ebx,%%eax\n" );
2529 fprintf( outfile, "\tandl $0xfff8,%%eax\n" );
2530 fprintf( outfile, "\tmovl " PREFIX "ldt_copy(%%eax),%%esi\n" );
2531 fprintf( outfile, "\tmovw %%bx,%%ax\n" );
2532 fprintf( outfile, "\taddl %%eax,%%esi\n" );
2533
2534 /* Allocate temporary area (simulate STACK16_PUSH) */
2535
2536 fprintf( outfile, "\tpushf\n" );
2537 fprintf( outfile, "\tcld\n" );
2538 fprintf( outfile, "\tleal -%d(%%esi), %%edi\n", size );
2539 fprintf( outfile, "\tmovl $%d, %%ecx\n", sizeof(STACK16FRAME) );
2540 fprintf( outfile, "\trep\n\tmovsb\n" );
2541 fprintf( outfile, "\tpopf\n" );
2542
2543 fprintf( outfile, "\t.byte 0x64\n\tsubw $%d,(%d)\n", size, STACKOFFSET );
2544
2545 fprintf( outfile, "\tpushl %%edi\n" ); /* remember address */
2546
2547 /* Set up temporary area */
2548
2549 if ( !isEx )
2550 {
2551 fprintf( outfile, "\tleal 4(%%edi), %%edi\n" );
2552
2553 fprintf( outfile, "\tleal -8(%%esp), %%eax\n" );
2554 fprintf( outfile, "\tmovl %%eax, -8(%%edi)\n" ); /* 32-bit sp */
2555
2556 fprintf( outfile, "\tmovw %%ss, %%ax\n" );
2557 fprintf( outfile, "\tandl $0x0000ffff, %%eax\n" );
2558 fprintf( outfile, "\tmovl %%eax, -4(%%edi)\n" ); /* 32-bit ss */
2559
2560 fprintf( outfile, "\taddl $%d, %%ebx\n", sizeof(STACK16FRAME)-size+4 + 4 );
2561 fprintf( outfile, "\tmovl %%ebx, 0(%%edi)\n" ); /* 16-bit ss:sp */
2562
2563 fprintf( outfile, "\tmovl " PREFIX "CALL32_%s_RetAddr, %%eax\n", name );
2564 fprintf( outfile, "\tmovl %%eax, 4(%%edi)\n" ); /* overwrite return address */
2565 }
2566 else
2567 {
2568 fprintf( outfile, "\taddl $%d, %%ebx\n", sizeof(STACK16FRAME)-size+4 );
2569 fprintf( outfile, "\tmovl %%ebx, 0(%%edi)\n" );
2570
2571 fprintf( outfile, "\tmovw %%ds, %%ax\n" );
2572 fprintf( outfile, "\tmovw %%ax, 4(%%edi)\n" );
2573
2574 fprintf( outfile, "\taddl $20, %%ebx\n" );
2575 fprintf( outfile, "\tmovw %%bx, 10(%%edi)\n" );
2576
2577 fprintf( outfile, "\tleal -8(%%esp), %%eax\n" );
2578 fprintf( outfile, "\tmovl %%eax, 12(%%edi)\n" );
2579
2580 fprintf( outfile, "\tmovw %%ss, %%ax\n" );
2581 fprintf( outfile, "\tandl $0x0000ffff, %%eax\n" );
2582 fprintf( outfile, "\tmovl %%eax, 16(%%edi)\n" );
2583
2584 fprintf( outfile, "\tmovl " PREFIX "CALL32_%s_RetAddr, %%eax\n", name );
2585 fprintf( outfile, "\tmovl %%eax, 20(%%edi)\n" );
2586 }
2587
2588 /* Set up registers and call CBClient relay stub (simulating a far call) */
2589
2590 fprintf( outfile, "\tmovl 16(%%ebp), %%esi\n" );
2591 fprintf( outfile, "\tmovl (%%esi), %%esi\n" );
2592
2593 fprintf( outfile, "\tmovl %%edi, %%ebx\n" );
2594 fprintf( outfile, "\tmovl 8(%%ebp), %%eax\n" );
2595 fprintf( outfile, "\tmovl 12(%%ebp), %%ebp\n" );
2596
2597 fprintf( outfile, "\tpushl %%cs\n" );
2598 fprintf( outfile, "\tcall *%%eax\n" );
2599
2600 /* Return new esi value to caller */
2601
2602 fprintf( outfile, "\tmovl 32(%%esp), %%edi\n" );
2603 fprintf( outfile, "\tmovl %%esi, (%%edi)\n" );
2604
2605 /* Cleanup temporary area (simulate STACK16_POP) */
2606
2607 fprintf( outfile, "\tpop %%esi\n" );
2608
2609 fprintf( outfile, "\tpushf\n" );
2610 fprintf( outfile, "\tstd\n" );
2611 fprintf( outfile, "\tdec %%esi\n" );
2612 fprintf( outfile, "\tleal %d(%%esi), %%edi\n", size );
2613 fprintf( outfile, "\tmovl $%d, %%ecx\n", sizeof(STACK16FRAME) );
2614 fprintf( outfile, "\trep\n\tmovsb\n" );
2615 fprintf( outfile, "\tpopf\n" );
2616
2617 fprintf( outfile, "\t.byte 0x64\n\taddw $%d,(%d)\n", size, STACKOFFSET );
2618
2619 /* Return argument size to caller */
2620 if ( isEx )
2621 {
2622 fprintf( outfile, "\tmovl 32(%%esp), %%ebx\n" );
2623 fprintf( outfile, "\tmovl %%ebp, (%%ebx)\n" );
2624 }
2625
2626 /* Restore registers and return */
2627
2628 fprintf( outfile, "\tpopl %%ebx\n" );
2629 fprintf( outfile, "\tpopl %%esi\n" );
2630 fprintf( outfile, "\tpopl %%edi\n" );
2631 fprintf( outfile, "\tpopl %%ebp\n" );
2632 fprintf( outfile, "\tret\n" );
2633 }
2634
2635 static void BuildCallTo32CBClientRet( FILE *outfile, BOOL isEx )
2636 {
2637 char *name = isEx? "CBClientEx" : "CBClient";
2638
2639 /* '16-bit' return stub */
2640
2641 fprintf( outfile, "\n\t.globl " PREFIX "CALL32_%s_Ret\n", name );
2642 fprintf( outfile, PREFIX "CALL32_%s_Ret:\n", name );
2643
2644 if ( !isEx )
2645 {
2646 fprintf( outfile, "\tmovzwl %%sp, %%ebx\n" );
2647 fprintf( outfile, "\tlssl %%ss:-16(%%ebx), %%esp\n" );
2648 }
2649 else
2650 {
2651 fprintf( outfile, "\tmovzwl %%bp, %%ebx\n" );
2652 fprintf( outfile, "\tsubw %%bp, %%sp\n" );
2653 fprintf( outfile, "\tmovzwl %%sp, %%ebp\n" );
2654 fprintf( outfile, "\tlssl %%ss:-12(%%ebx), %%esp\n" );
2655 }
2656 fprintf( outfile, "\tlret\n" );
2657
2658 /* Declare the return address variable */
2659
2660 fprintf( outfile, "\n\t.globl " PREFIX "CALL32_%s_RetAddr\n", name );
2661 fprintf( outfile, PREFIX "CALL32_%s_RetAddr:\t.long 0\n", name );
2662 }
2663
2664
2665 /*******************************************************************
2666 * BuildCallTo32LargeStack
2667 *
2668 * Build the function used to switch to the original 32-bit stack
2669 * before calling a 32-bit function from 32-bit code. This is used for
2670 * functions that need a large stack, like X bitmaps functions.
2671 *
2672 * The generated function has the following prototype:
2673 * int xxx( int (*func)(), void *arg );
2674 *
2675 * The pointer to the function can be retrieved by calling CALL32_Init,
2676 * which also takes care of saving the current 32-bit stack pointer.
2677 * Furthermore, CALL32_Init switches to a new stack and jumps to the
2678 * specified target address.
2679 *
2680 * NOTE: The CALL32_LargeStack routine may be recursively entered by the
2681 * same thread, but not concurrently entered by several threads.
2682 *
2683 * Stack layout of CALL32_Init:
2684 *
2685 * (esp+12) new stack address
2686 * (esp+8) target address
2687 * (esp+4) pointer to variable to receive CALL32_LargeStack address
2688 * (esp) ret addr
2689 *
2690 * Stack layout of CALL32_LargeStack:
2691 * ... ...
2692 * (ebp+12) arg
2693 * (ebp+8) func
2694 * (ebp+4) ret addr
2695 * (ebp) ebp
2696 */
2697 static void BuildCallTo32LargeStack( FILE *outfile )
2698 {
2699 /* Initialization function */
2700
2701 fprintf( outfile, "\n\t.align 4\n" );
2702 #ifdef USE_STABS
2703 fprintf( outfile, ".stabs \"CALL32_Init:F1\",36,0,0," PREFIX "CALL32_Init\n");
2704 #endif
2705 fprintf( outfile, "\t.globl " PREFIX "CALL32_Init\n" );
2706 fprintf( outfile, "\t.type " PREFIX "CALL32_Init,@function\n" );
2707 fprintf( outfile, PREFIX "CALL32_Init:\n" );
2708 fprintf( outfile, "\tmovl %%esp,CALL32_Original32_esp\n" );
2709 fprintf( outfile, "\tpopl %%eax\n" );
2710 fprintf( outfile, "\tpopl %%eax\n" );
2711 fprintf( outfile, "\tmovl $CALL32_LargeStack,(%%eax)\n" );
2712 fprintf( outfile, "\tpopl %%eax\n" );
2713 fprintf( outfile, "\tpopl %%esp\n" );
2714 fprintf( outfile, "\tpushl %%eax\n" );
2715 fprintf( outfile, "\tret\n" );
2716
2717 /* Function header */
2718
2719 fprintf( outfile, "\n\t.align 4\n" );
2720 #ifdef USE_STABS
2721 fprintf( outfile, ".stabs \"CALL32_LargeStack:F1\",36,0,0,CALL32_LargeStack\n");
2722 #endif
2723 fprintf( outfile, "CALL32_LargeStack:\n" );
2724
2725 /* Entry code */
2726
2727 fprintf( outfile, "\tpushl %%ebp\n" );
2728 fprintf( outfile, "\tmovl %%esp,%%ebp\n" );
2729
2730 /* Switch to the original 32-bit stack pointer */
2731
2732 fprintf( outfile, "\tcmpl $0, CALL32_RecursionCount\n" );
2733 fprintf( outfile, "\tjne CALL32_skip\n" );
2734 fprintf( outfile, "\tmovl CALL32_Original32_esp, %%esp\n" );
2735 fprintf( outfile, "CALL32_skip:\n" );
2736
2737 fprintf( outfile, "\tincl CALL32_RecursionCount\n" );
2738
2739 /* Transfer the argument and call the function */
2740
2741 fprintf( outfile, "\tpushl 12(%%ebp)\n" );
2742 fprintf( outfile, "\tcall *8(%%ebp)\n" );
2743
2744 /* Restore registers and return */
2745
2746 fprintf( outfile, "\tdecl CALL32_RecursionCount\n" );
2747
2748 fprintf( outfile, "\tmovl %%ebp,%%esp\n" );
2749 fprintf( outfile, "\tpopl %%ebp\n" );
2750 fprintf( outfile, "\tret\n" );
2751
2752 /* Data */
2753
2754 fprintf( outfile, "\t.data\n" );
2755 fprintf( outfile, "CALL32_Original32_esp:\t.long 0\n" );
2756 fprintf( outfile, "CALL32_RecursionCount:\t.long 0\n" );
2757 fprintf( outfile, "\t.text\n" );
2758 }
2759
2760
2761 /*******************************************************************
2762 * BuildCallFrom32Regs
2763 *
2764 * Build a 32-bit-to-Wine call-back function for a 'register' function.
2765 * 'args' is the number of dword arguments.
2766 *
2767 * Stack layout:
2768 * ...
2769 * (ebp+12) first arg
2770 * (ebp+8) ret addr to user code
2771 * (ebp+4) ret addr to relay code
2772 * (ebp+0) saved ebp
2773 * (ebp-128) buffer area to allow stack frame manipulation
2774 * (ebp-332) CONTEXT86 struct
2775 * (ebp-336) CONTEXT86 *argument
2776 * .... other arguments copied from (ebp+12)
2777 *
2778 * The entry point routine is called with a CONTEXT* extra argument,
2779 * following the normal args. In this context structure, EIP_reg
2780 * contains the return address to user code, and ESP_reg the stack
2781 * pointer on return (with the return address and arguments already
2782 * removed).
2783 */
2784 static void BuildCallFrom32Regs( FILE *outfile )
2785 {
2786 static const int STACK_SPACE = 128 + sizeof(CONTEXT86);
2787
2788 /* Function header */
2789
2790 fprintf( outfile, "\n\t.align 4\n" );
2791 #ifdef USE_STABS
2792 fprintf( outfile, ".stabs \"CALL32_Regs:F1\",36,0,0," PREFIX "CALL32_Regs\n" );
2793 #endif
2794 fprintf( outfile, "\t.globl " PREFIX "CALL32_Regs\n" );
2795 fprintf( outfile, PREFIX "CALL32_Regs:\n" );
2796
2797 /* Allocate some buffer space on the stack */
2798
2799 fprintf( outfile, "\tpushl %%ebp\n" );
2800 fprintf( outfile, "\tmovl %%esp,%%ebp\n ");
2801 fprintf( outfile, "\tleal -%d(%%esp), %%esp\n", STACK_SPACE );
2802
2803 /* Build the context structure */
2804
2805 fprintf( outfile, "\tmovl %%eax,%d(%%ebp)\n", CONTEXTOFFSET(Eax) - STACK_SPACE );
2806 fprintf( outfile, "\tpushfl\n" );
2807 fprintf( outfile, "\tpopl %%eax\n" );
2808 fprintf( outfile, "\tmovl %%eax,%d(%%ebp)\n", CONTEXTOFFSET(EFlags) - STACK_SPACE );
2809 fprintf( outfile, "\tmovl 0(%%ebp),%%eax\n" );
2810 fprintf( outfile, "\tmovl %%eax,%d(%%ebp)\n", CONTEXTOFFSET(Ebp) - STACK_SPACE );
2811 fprintf( outfile, "\tmovl %%ebx,%d(%%ebp)\n", CONTEXTOFFSET(Ebx) - STACK_SPACE );
2812 fprintf( outfile, "\tmovl %%ecx,%d(%%ebp)\n", CONTEXTOFFSET(Ecx) - STACK_SPACE );
2813 fprintf( outfile, "\tmovl %%edx,%d(%%ebp)\n", CONTEXTOFFSET(Edx) - STACK_SPACE );
2814 fprintf( outfile, "\tmovl %%esi,%d(%%ebp)\n", CONTEXTOFFSET(Esi) - STACK_SPACE );
2815 fprintf( outfile, "\tmovl %%edi,%d(%%ebp)\n", CONTEXTOFFSET(Edi) - STACK_SPACE );
2816
2817 fprintf( outfile, "\txorl %%eax,%%eax\n" );
2818 fprintf( outfile, "\tmovw %%cs,%%ax\n" );
2819 fprintf( outfile, "\tmovl %%eax,%d(%%ebp)\n", CONTEXTOFFSET(SegCs) - STACK_SPACE );
2820 fprintf( outfile, "\tmovw %%es,%%ax\n" );
2821 fprintf( outfile, "\tmovl %%eax,%d(%%ebp)\n", CONTEXTOFFSET(SegEs) - STACK_SPACE );
2822 fprintf( outfile, "\tmovw %%fs,%%ax\n" );
2823 fprintf( outfile, "\tmovl %%eax,%d(%%ebp)\n", CONTEXTOFFSET(SegFs) - STACK_SPACE );
2824 fprintf( outfile, "\tmovw %%gs,%%ax\n" );
2825 fprintf( outfile, "\tmovl %%eax,%d(%%ebp)\n", CONTEXTOFFSET(SegGs) - STACK_SPACE );
2826 fprintf( outfile, "\tmovw %%ss,%%ax\n" );
2827 fprintf( outfile, "\tmovl %%eax,%d(%%ebp)\n", CONTEXTOFFSET(SegSs) - STACK_SPACE );
2828 fprintf( outfile, "\tmovw %%ds,%%ax\n" );
2829 fprintf( outfile, "\tmovl %%eax,%d(%%ebp)\n", CONTEXTOFFSET(SegDs) - STACK_SPACE );
2830 fprintf( outfile, "\tmovw %%ax,%%es\n" ); /* set %es equal to %ds just in case */
2831
2832 fprintf( outfile, "\tmovl $0x%x,%%eax\n", CONTEXT86_FULL );
2833 fprintf( outfile, "\tmovl %%eax,%d(%%ebp)\n", CONTEXTOFFSET(ContextFlags) - STACK_SPACE );
2834
2835 fprintf( outfile, "\tmovl 8(%%ebp),%%eax\n" ); /* Get %eip at time of call */
2836 fprintf( outfile, "\tmovl %%eax,%d(%%ebp)\n", CONTEXTOFFSET(Eip) - STACK_SPACE );
2837
2838 /* Transfer the arguments */
2839
2840 fprintf( outfile, "\tmovl 4(%%ebp),%%ebx\n" ); /* get relay code addr */
2841 fprintf( outfile, "\tpushl %%esp\n" ); /* push ptr to context struct */
2842 fprintf( outfile, "\tmovzbl 4(%%ebx),%%ecx\n" ); /* fetch number of args to copy */
2843 fprintf( outfile, "\tjecxz 1f\n" );
2844 fprintf( outfile, "\tsubl %%ecx,%%esp\n" );
2845 fprintf( outfile, "\tleal 12(%%ebp),%%esi\n" ); /* get %esp at time of call */
2846 fprintf( outfile, "\tmovl %%esp,%%edi\n" );
2847 fprintf( outfile, "\tshrl $2,%%ecx\n" );
2848 fprintf( outfile, "\tcld\n" );
2849 fprintf( outfile, "\trep\n\tmovsl\n" ); /* copy args */
2850
2851 fprintf( outfile, "1:\tmovzbl 5(%%ebx),%%eax\n" ); /* fetch number of args to remove */
2852 fprintf( outfile, "\tleal 12(%%ebp,%%eax),%%eax\n" );
2853 fprintf( outfile, "\tmovl %%eax,%d(%%ebp)\n", CONTEXTOFFSET(Esp) - STACK_SPACE );
2854
2855 /* Call the entry point */
2856
2857 fprintf( outfile, "\tcall *0(%%ebx)\n" );
2858
2859 /* Store %eip and %ebp onto the new stack */
2860
2861 fprintf( outfile, "\tmovl %d(%%ebp),%%edx\n", CONTEXTOFFSET(Esp) - STACK_SPACE );
2862 fprintf( outfile, "\tmovl %d(%%ebp),%%eax\n", CONTEXTOFFSET(Eip) - STACK_SPACE );
2863 fprintf( outfile, "\tmovl %%eax,-4(%%edx)\n" );
2864 fprintf( outfile, "\tmovl %d(%%ebp),%%eax\n", CONTEXTOFFSET(Ebp) - STACK_SPACE );
2865 fprintf( outfile, "\tmovl %%eax,-8(%%edx)\n" );
2866
2867 /* Restore the context structure */
2868
2869 /* Note: we don't bother to restore %cs, %ds and %ss
2870 * changing them in 32-bit code is a recipe for disaster anyway
2871 */
2872 fprintf( outfile, "\tmovl %d(%%ebp),%%eax\n", CONTEXTOFFSET(SegEs) - STACK_SPACE );
2873 fprintf( outfile, "\tmovw %%ax,%%es\n" );
2874 fprintf( outfile, "\tmovl %d(%%ebp),%%eax\n", CONTEXTOFFSET(SegFs) - STACK_SPACE );
2875 fprintf( outfile, "\tmovw %%ax,%%fs\n" );
2876 fprintf( outfile, "\tmovl %d(%%ebp),%%eax\n", CONTEXTOFFSET(SegGs) - STACK_SPACE );
2877 fprintf( outfile, "\tmovw %%ax,%%gs\n" );
2878
2879 fprintf( outfile, "\tmovl %d(%%ebp),%%edi\n", CONTEXTOFFSET(Edi) - STACK_SPACE );
2880 fprintf( outfile, "\tmovl %d(%%ebp),%%esi\n", CONTEXTOFFSET(Esi) - STACK_SPACE );
2881 fprintf( outfile, "\tmovl %d(%%ebp),%%edx\n", CONTEXTOFFSET(Edx) - STACK_SPACE );
2882 fprintf( outfile, "\tmovl %d(%%ebp),%%ecx\n", CONTEXTOFFSET(Ecx) - STACK_SPACE );
2883 fprintf( outfile, "\tmovl %d(%%ebp),%%ebx\n", CONTEXTOFFSET(Ebx) - STACK_SPACE );
2884
2885 fprintf( outfile, "\tmovl %d(%%ebp),%%eax\n", CONTEXTOFFSET(EFlags) - STACK_SPACE );
2886 fprintf( outfile, "\tpushl %%eax\n" );
2887 fprintf( outfile, "\tpopfl\n" );
2888 fprintf( outfile, "\tmovl %d(%%ebp),%%eax\n", CONTEXTOFFSET(Eax) - STACK_SPACE );
2889
2890 fprintf( outfile, "\tmovl %d(%%ebp),%%ebp\n", CONTEXTOFFSET(Esp) - STACK_SPACE );
2891 fprintf( outfile, "\tleal -8(%%ebp),%%esp\n" );
2892 fprintf( outfile, "\tpopl %%ebp\n" );
2893 fprintf( outfile, "\tret\n" );
2894 }
2895
2896
2897 /*******************************************************************
2898 * BuildGlue
2899 *
2900 * Build the 16-bit-to-Wine/Wine-to-16-bit callback glue code
2901 */
2902 static void BuildGlue( FILE *outfile, FILE *infile )
2903 {
2904 char buffer[1024];
2905
2906 /* File header */
2907
2908 fprintf( outfile, "/* File generated automatically from %s; do not edit! */\n\n",
2909 input_file_name );
2910 fprintf( outfile, "#include \"builtin16.h\"\n" );
2911 fprintf( outfile, "#include \"stackframe.h\"\n\n" );
2912
2913 /* Build the callback glue functions */
2914
2915 while (fgets( buffer, sizeof(buffer), infile ))
2916 {
2917 if (strstr( buffer, "### start build ###" )) break;
2918 }
2919 while (fgets( buffer, sizeof(buffer), infile ))
2920 {
2921 char *p;
2922 if ( (p = strstr( buffer, "CallFrom16_" )) != NULL )
2923 {
2924 char *q, *profile = p + strlen( "CallFrom16_" );
2925 for (q = profile; (*q == '_') || isalpha(*q); q++ )
2926 ;
2927 *q = '\0';
2928 for (q = p-1; q > buffer && ((*q == '_') || isalnum(*q)); q-- )
2929 ;
2930 if ( ++q < p ) p[-1] = '\0'; else q = "";
2931 BuildCallFrom16Func( outfile, profile, q, FALSE );
2932 }
2933 if ( (p = strstr( buffer, "CallTo16_" )) != NULL )
2934 {
2935 char *q, *profile = p + strlen( "CallTo16_" );
2936 for (q = profile; (*q == '_') || isalpha(*q); q++ )
2937 ;
2938 *q = '\0';
2939 for (q = p-1; q > buffer && ((*q == '_') || isalnum(*q)); q-- )
2940 ;
2941 if ( ++q < p ) p[-1] = '\0'; else q = "";
2942 BuildCallTo16Func( outfile, profile, q );
2943 }
2944 if (strstr( buffer, "### stop build ###" )) break;
2945 }
2946
2947 fclose( infile );
2948 }
2949
2950 /*******************************************************************
2951 * BuildCall16
2952 *
2953 * Build the 16-bit callbacks
2954 */
2955 static void BuildCall16( FILE *outfile )
2956 {
2957 /* File header */
2958
2959 fprintf( outfile, "/* File generated automatically. Do not edit! */\n\n" );
2960 fprintf( outfile, "\t.text\n" );
2961
2962 #ifdef __i386__
2963
2964 #ifdef USE_STABS
2965 if (output_file_name)
2966 {
2967 char buffer[1024];
2968 getcwd(buffer, sizeof(buffer));
2969 fprintf( outfile, "\t.file\t\"%s\"\n", output_file_name );
2970
2971 /*
2972 * The stabs help the internal debugger as they are an indication that it
2973 * is sensible to step into a thunk/trampoline.
2974 */
2975 fprintf( outfile, ".stabs \"%s/\",100,0,0,Code_Start\n", buffer);
2976 fprintf( outfile, ".stabs \"%s\",100,0,0,Code_Start\n", output_file_name );
2977 fprintf( outfile, "Code_Start:\n\n" );
2978 }
2979 #endif
2980 fprintf( outfile, PREFIX"Call16_Start:\n" );
2981 fprintf( outfile, "\t.globl "PREFIX"Call16_Start\n" );
2982 fprintf( outfile, "\t.byte 0\n\n" );
2983
2984
2985 /* Standard CallFrom16 routine (WORD return) */
2986 BuildCallFrom16Core( outfile, FALSE, FALSE, TRUE );
2987
2988 /* Standard CallFrom16 routine (DWORD return) */
2989 BuildCallFrom16Core( outfile, FALSE, FALSE, FALSE );
2990
2991 /* Register CallFrom16 routine */
2992 BuildCallFrom16Core( outfile, TRUE, FALSE, FALSE );
2993
2994 /* C16ThkSL CallFrom16 routine */
2995 BuildCallFrom16Core( outfile, FALSE, TRUE, FALSE );
2996
2997 /* Standard CallTo16 routine (WORD return) */
2998 BuildCallTo16Core( outfile, TRUE, FALSE );
2999
3000 /* Standard CallTo16 routine (DWORD return) */
3001 BuildCallTo16Core( outfile, FALSE, FALSE );
3002
3003 /* Register CallTo16 routine (16:16 retf) */
3004 BuildCallTo16Core( outfile, FALSE, 1 );
3005
3006 /* Register CallTo16 routine (16:32 retf) */
3007 BuildCallTo16Core( outfile, FALSE, 2 );
3008
3009 /* CBClientThunkSL routine */
3010 BuildCallTo32CBClient( outfile, FALSE );
3011
3012 /* CBClientThunkSLEx routine */
3013 BuildCallTo32CBClient( outfile, TRUE );
3014
3015 fprintf( outfile, PREFIX"Call16_End:\n" );
3016 fprintf( outfile, "\t.globl "PREFIX"Call16_End\n" );
3017
3018 #ifdef USE_STABS
3019 fprintf( outfile, "\t.stabs \"\",100,0,0,.Letext\n");
3020 fprintf( outfile, ".Letext:\n");
3021 #endif
3022
3023 /* The whole Call16_Ret segment must lie within the .data section */
3024 fprintf( outfile, "\n\t.data\n" );
3025 fprintf( outfile, "\t.globl " PREFIX "Call16_Ret_Start\n" );
3026 fprintf( outfile, PREFIX "Call16_Ret_Start:\n" );
3027
3028 /* Standard CallTo16 return stub */
3029 BuildRet16Func( outfile );
3030
3031 /* CBClientThunkSL return stub */
3032 BuildCallTo32CBClientRet( outfile, FALSE );
3033
3034 /* CBClientThunkSLEx return stub */
3035 BuildCallTo32CBClientRet( outfile, TRUE );
3036
3037 /* End of Call16_Ret segment */
3038 fprintf( outfile, "\n\t.globl " PREFIX "Call16_Ret_End\n" );
3039 fprintf( outfile, PREFIX "Call16_Ret_End:\n" );
3040
3041 #else /* __i386__ */
3042
3043 fprintf( outfile, PREFIX"Call16_Start:\n" );
3044 fprintf( outfile, "\t.globl "PREFIX"Call16_Start\n" );
3045 fprintf( outfile, "\t.byte 0\n\n" );
3046 fprintf( outfile, PREFIX"Call16_End:\n" );
3047 fprintf( outfile, "\t.globl "PREFIX"Call16_End\n" );
3048
3049 fprintf( outfile, "\t.globl " PREFIX "Call16_Ret_Start\n" );
3050 fprintf( outfile, PREFIX "Call16_Ret_Start:\n" );
3051 fprintf( outfile, "\t.byte 0\n\n" );
3052 fprintf( outfile, "\n\t.globl " PREFIX "Call16_Ret_End\n" );
3053 fprintf( outfile, PREFIX "Call16_Ret_End:\n" );
3054
3055 #endif /* __i386__ */
3056 }
3057
3058 /*******************************************************************
3059 * BuildCall32
3060 *
3061 * Build the 32-bit callbacks
3062 */
3063 static void BuildCall32( FILE *outfile )
3064 {
3065 /* File header */
3066
3067 fprintf( outfile, "/* File generated automatically. Do not edit! */\n\n" );
3068 fprintf( outfile, "\t.text\n" );
3069
3070 #ifdef __i386__
3071
3072 #ifdef USE_STABS
3073 if (output_file_name)
3074 {
3075 char buffer[1024];
3076 getcwd(buffer, sizeof(buffer));
3077 fprintf( outfile, "\t.file\t\"%s\"\n", output_file_name );
3078
3079 /*
3080 * The stabs help the internal debugger as they are an indication that it
3081 * is sensible to step into a thunk/trampoline.
3082 */
3083 fprintf( outfile, ".stabs \"%s/\",100,0,0,Code_Start\n", buffer);
3084 fprintf( outfile, ".stabs \"%s\",100,0,0,Code_Start\n", output_file_name );
3085 fprintf( outfile, "Code_Start:\n" );
3086 }
3087 #endif
3088
3089 /* Build the 32-bit large stack callback */
3090
3091 BuildCallTo32LargeStack( outfile );
3092
3093 /* Build the register callback function */
3094
3095 BuildCallFrom32Regs( outfile );
3096
3097 #ifdef USE_STABS
3098 fprintf( outfile, "\t.text\n");
3099 fprintf( outfile, "\t.stabs \"\",100,0,0,.Letext\n");
3100 fprintf( outfile, ".Letext:\n");
3101 #endif
3102
3103 #else /* __i386__ */
3104
3105 /* Just to avoid an empty file */
3106 fprintf( outfile, "\t.long 0\n" );
3107
3108 #endif /* __i386__ */
3109 }
3110
3111
3112 /*******************************************************************
3113 * usage
3114 */
3115 static void usage(void)
3116 {
3117 fprintf( stderr,
3118 "usage: build [-pic] [-o outfile] -spec SPEC_FILE\n"
3119 " build [-pic] [-o outfile] -glue SOURCE_FILE\n"
3120 " build [-pic] [-o outfile] -call16\n"
3121 " build [-pic] [-o outfile] -call32\n" );
3122 if (output_file_name) unlink( output_file_name );
3123 exit(1);
3124 }
3125
3126
3127 /*******************************************************************
3128 * open_input
3129 */
3130 static FILE *open_input( const char *name )
3131 {
3132 FILE *f;
3133
3134 if (!name)
3135 {
3136 input_file_name = "<stdin>";
3137 return stdin;
3138 }
3139 input_file_name = name;
3140 if (!(f = fopen( name, "r" )))
3141 {
3142 fprintf( stderr, "Cannot open input file '%s'\n", name );
3143 if (output_file_name) unlink( output_file_name );
3144 exit(1);
3145 }
3146 return f;
3147 }
3148
3149 /*******************************************************************
3150 * main
3151 */
3152 int main(int argc, char **argv)
3153 {
3154 FILE *outfile = stdout;
3155
3156 if (argc < 2) usage();
3157
3158 if (!strcmp( argv[1], "-pic" ))
3159 {
3160 UsePIC = 1;
3161 argv += 1;
3162 argc -= 1;
3163 if (argc < 2) usage();
3164 }
3165
3166 if (!strcmp( argv[1], "-o" ))
3167 {
3168 output_file_name = argv[2];
3169 argv += 2;
3170 argc -= 2;
3171 if (argc < 2) usage();
3172 if (!(outfile = fopen( output_file_name, "w" )))
3173 {
3174 fprintf( stderr, "Unable to create output file '%s'\n", output_file_name );
3175 exit(1);
3176 }
3177 }
3178
3179 /* Retrieve the selector values; this assumes that we are building
3180 * the asm files on the platform that will also run them. Probably
3181 * a safe assumption to make.
3182 */
3183 GET_CS( Code_Selector );
3184 GET_DS( Data_Selector );
3185
3186 if (!strcmp( argv[1], "-spec" )) BuildSpecFile( outfile, open_input( argv[2] ) );
3187 else if (!strcmp( argv[1], "-glue" )) BuildGlue( outfile, open_input( argv[2] ) );
3188 else if (!strcmp( argv[1], "-call16" )) BuildCall16( outfile );
3189 else if (!strcmp( argv[1], "-call32" )) BuildCall32( outfile );
3190 else
3191 {
3192 fclose( outfile );
3193 usage();
3194 }
3195
3196 fclose( outfile );
3197 return 0;
3198 }
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